Multiband DWDM Transmission Using a DeployedFibre-Optic Cable

Daiki Soma, Tomoyuki Kato(Fujitsu Limited), Shohei Beppu, Daniel J. Elson, Hidenobu Muranaka(Fujitsu Limited), Hiroyuki Irie(Fujitsu Limited), Shun Okada(Fujitsu Limited), Yu Tanaka(Fujitsu Limited), Yuta Wakayama, Noboru Yoshikane, Takeshi Hoshida(Fujitsu Limited), Takehiro Tsuritani

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

An Extended Closed Form of the ISRS GN Model for the Zero Dispersion Regime

Filippos Balasis, Daniel J. Elson, Mindaugas Jarmolovičius((University College London), Henrique Buglia(University College London); Eric Sillekens(University College London); Robert I. Killey(University College London), Polina Bayvel(University College London); Noboru Yoshikane, Takehiro Tsuritani, Yuta Wakayama

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

LLM-enabled Full-stack Configuration Automation of SDM Transport Network

Cen Wang, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

Service Provision and Fault Recovery Powered by Ultra-fast QoT Inference and Online Learning on a Field Deployed Meshed WDM-over-SDM Network

Cen Wang, Daniel J. Elson, Shohei Beppu, Daiki Soma, Seiya Sumita, Yuta Wakayama

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

126-Tb/s 2-Core Fibre Transmission over 114.6 km × 5 Spans with Ultra-Low-Loss Fibre Bundle Fan-in/Fan-out

Kosuke Komatsu , Shohei Beppu, Daiki Soma, Dai Sasaki(OrbrayCo., Ltd.), Tsutomu Okamoto(OrbrayCo., Ltd.) , Michael Lorenz (Heraeus Comvance), Qiulin Ma(Heraeus Comvance), Noboru Yoshikane, Takehiro Tsuritani, Martin Böttcher (Heraeus Comvance), Ansgar Meissner(OrbrayCo., Ltd.), Lidia Galdino(Corning Incorporated.), Kevin Bennett(Corning Incorporated.), Sergejs Makovejs(Corning Incorporated.), Yuta Wakayama

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

High-power, High-speed (1W/20-Gbaud) Free-space Optical Communication Enabled by Photon-photon Resonance of Photonic-crystal Surface-emitting Laser

Shota Ishimura, Ryohei Morita(Kyoto University), Takuya Inoue(Kyoto University), Hidenori Takahashi, Takehiro Tsuritani, Menaka De Zoysa(Kyoto University), Kenji Ishizaki(Kyoto University), Masatoshi Suzuki(Waseda University), Susumu Noda(Kyoto University)

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

Visible Light Coherent Communication: First Demonstration of > 1-Tb/s Coherent Demodulation at780 nm

Takashi Kan, Shota Ishimura, Hidenori Takahashi,Takehiro Tsuritani

The 50th European Conference on Optical Communication (ECOC 2024)

September 2024

300 GHz-Band Transmission System Using Carrier Generation by Optical and Wireless Converged Approach

Kosuke Nishimura, Ken-Ichi Kashima(Hitachi Kokusai Electric Inc.) , Atsunobu Ohta(Dexerials Photonics Solutions Corporation), Ryotaro Manabe(Hitachi Kokusai Electric Inc.), Hotaka Hayashi, Hidenori Takahashi, Michikazu Hattori(Toyo Electric Corporation), Takehiro Tsuritani, Hiroshi Murata(Mie University)

2024 International Topical Meeting on Microwave Photonics (MWP 2024)

September 2024

Power Consumption Assessment of Co-Located and Distributed Antenna Architectures

Kamya Yekeh Yazdandoost, Ryo Inohara, Takehiro Tsuritani

2024 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)

August 2024

Coherent O band WDM Transmission Using Bismuth Doped Fiber Amplifiers

Daniel J. Elson, Yuta Wakayama

 The 16th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2024) 

August 2024

Performance Analysis of Self-Homodyne Free-Space Optical Communication with Pre-amplifier-Free Partial Stokes-Vector Receiver

Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani

OptoElectronics and Communications Conference (OECC)

June 2024

Mitigation of Outage Probability for All-Optical FSO System using Multipath SNR Equalization Scheme

hodaka hayashi, hidenori Takahashi, Abdelmoula Bekkali(Toyo Electric Corporation), Michikazu Hattori(Toyo Electric Corporation), Yuichiro Hara(Toyo Electric Corporation),Yukihiko Suga(Toyo Electric Corporation),Takehiro Tsuritani

OptoElectronics and Communications Conference (OECC) 2024

June 2024

A Distributed-Ledger-based Multi-Entity Cooperation Platform for Network-Cloud Recovery

Sugang Xu(NICT), Subhadeep Sahoo(University of California), Noboru Yoshikane, Sifat Ferdousi(University of California), Masaki Shiraiwa(NICT), Yusuke Hirota(NICT), Takehiro Tsuritani, Massimo Tornatore(Politecnico di Milano), Yoshinari Awaji(NICT), Biswanath Mukherjee(University of California)

The 28th International Conference on Optical Network Design and Modelling (ONDM2024)

May 2024

Experimental Demonstration of Silicon Photonic Reservoir Computing with a Multimode Racetrack-Loop Device

Takashi Kan, Siim Heinsalu(Waseda University), WHideaki Tanaka, Hirotaka Oshima(Waseda University), Hidenori Takahashi, Takehiko Tsuritani, Katsuyuki Utaka(Waseda University), Masatoshi Suzuki

Conference on Lasers and Electro-Optics (CLEO2024)

May 2024

Generation of watt-class FM signals with suppressed AM from PCSELs for coherent free-space optical communications

Takuya Inoue(Kyoto University), Ryohei Morita(Kyoto University), Shuei Nakano(Kyoto University), Shota Ishimura, Kosuke Nishimura, Hidenori Takahashi, Takehiko Tsuritani, Menaka Zoysa(Kyoto University), Kenji Ishizaki(Kyoto University), Masatoshi Suzuki, Susumu Noda(Kyoto University)

Conference on Lasers and Electro-Optics (CLEO2024)

May 2024

Photonic Extreme Learning Machine by Using Intermodulation in a Mach-Zehnder Modulator Driven by Subcarrier Signal

Hideaki Tanaka, Takashi Kan, Hidenori Takahashi

Conference on Lasers and Electro-Optics (CLEO2024)

May 2024

Continuous 16.4-THz Bandwidth Coherent DWDM Transmission in O-Band Using a Single Fibre Amplifier System

Daniel Elson, Vitaly Mikhailov(OFS Laboratories), Jiawei Luo(OFS Laboratories), Shohei Beppu, Glenn Baxter(Finisar Austrailia), Ralf Stolte(Finisar Austrailia), Luke Stewart(Finisar Austrailia), Shigehiro Takasaka(Furukawa Electric Co.), Mindaugas Jarmolovičius(University College London), Eric Sillekens(University College London), Robert Killey(University College London), Polina Bayvel(University College London), Noboru Yoshikane, Takehiro Tsuritani, Yuta Wakayama

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

18,090-km 2-Core Fiber Transmission Using Circulatory Directional Fan-in/Fan-out Devices

Daiki Soma, Shohei Beppu, Lidia Galdino(Corning), Michael Lorenz(Heraeus Comvance), Qiulin Ma(Heraeus Comvance), Katsuhiro Iwasaki(Kohoku Kogyo), Seiya Sumita, Kosuke Komatsu, Daniel Elson, Tomoaki Kiriyama(Kohoku Kogyo), Katsuya Kito(Kohoku Kogyo), Keito Kitamura(Kohoku Kogyo), Hidenori Takahashi, Noboru Yoshikane, akashi Kato(Kohoku Kogyo), Takehiro Tsuritani, Martin Boettcher(Heraeus Comvance), Ansgar Meissner(Heraeus Comvance), Kevin Bennett(Corning), Sergejs Makovejs(Corning), Yuta Wakayama

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

Metasurface-Based Coherent Receiver Insensitive to LO Polarization

Kento Komatsu(The Univerisity of Tokyo), Shota Ishimura, Chun Ren(The Univerisity of Tokyo), Go Soma(The Univerisity of Tokyo), Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki, Yoshiaki Nakano(The Univerisity of Tokyo), Takuo Tanemura(The Univerisity of Tokyo)

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

Circularly-Polarized Self-Homodyne Free-Space Optical Communication Using Partial Stokes-Vector Receiver

Shota Ishimura, Hidenori Takahash, Go Soma(The University of Tokyo), Kento Komatsu(The University of Tokyo), Takuo Tanemura(The University of Tokyo), Takehiro Tsuritani, Masatoshi Suzuki

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

122.6 Tb/s S+C+L Band Unrepeated Transmission Over 223 km Link With Optimised Bidirectional Raman Amplification

Jiaqian Yang(University College London), Romulo Aparecido de Paula Junior(University College London), Henrique Buglia(University College London), Pratim Hazarika(Aston University), Eric Sillekens(University College London), Ronit Sohanpal(University College London), Mingming Tan(Aston University), Dini Pratiwi(Aston University), Ruben Luis(NICT), Benjamin Puttnam(NICT), Yuta Wakayama, Wladek Forysiak(Aston University), Polina Bayvel(University College London), Robert Killey(University College London)

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

First Demonstration of 4×4 Distributed MIMO Communication with 3GPP-compliant 5G Smartphone utilizing SCM/WDM-Based IF-over-Fiber MFH Link

Shinji Nimura, Kazuki Tanaka, Kamya Yazdandoost, Ryo Inohara, Masatoshi Suzuki, Takehiro Tsuritani

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

PtMP Multi-IF-Over-Fiber Systems Using Remotely Shared Local Oscillators for Plural Antenna Sites

Kazuki Tanaka, Shinji Nimura and Ryo Inohara

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

U-Band Transmission Characteristics Over Standard Cladding Step-Index 4-Core Fiber Span

Daiki Soma, Tomoyuki Kato(Fujitsu Limited), Shohei Beppu, Daniel Elson, Hidenobu Muranaka(Fujitsu Limited), Hiroyuki Irie(Fujitsu Limited), Shun Okada(Fujitsu Limited), Yu Tanaka(Fujitsu Limited), Yuta Wakayama, Noboru Yoshikane, Takeshi Hoshida(Fujitsu Limited), Takehiro Tsuritani

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

U-Band WDM Transmission Over 90-km Deployed Fiber-Optic Cable Leveraged by S+C+L-Band WDM Channels

Tomoyuki Kato(Fujitsu Limited), Shohei Beppu, Daiki Soma, Hidenobu Muranaka(Fujitsu Limited), Shun Okada(Fujitsu Limited), Hiroyuki Irie(Fujitsu Limited), Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani, Yu Tanaka(Fujitsu Limited), Takeshi Hoshida(Fujitsu Limited)

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

A Tale for Many: Integrated Control Mechanism of Optical Circuit Switching for Data Center and Distributed Deep Learning System

Cen Wang, Yuta Wakayama, Noboru Yoshikane,Takehiro Tsuritani

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

Span Order Dependency for Nonlinear Interference Noise over Inhomogeneous Multispan O-band Coherent Transmission

Daniel J. Elson, Mindaugas Jarmoloviˇcius(UCL), Noboru Yoshikane, Takehiro Tsuritani, Eric Sillekens(UCL), Polina Bayvel(UCL), Robert Killey(UCL), Yuta Wakayama

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

New GAWBS Noise Interacting with Longitudinally Propagating Acoustic Waves in Few-mode Fibers

Masato Yoshida(Tohoku University), Takaaki Hirai(Tohoku University), Shohei Beppu, Keisuke Kasai(Tohoku University), Toshihiko Hirooka(Tohoku University),Masataka Nakazawa(Tohoku University), Yuta Wakayama, Noboru Yoshikane

2024 Optical Fiber Communications Conference and Exhibition (OFC)

March 2024

Multiband class coherent DWDM transmission in O-band supported by ultrawideband bismuth-doped fibre amplifier

Daniel J. Elson, Yuta Wakayama

SPIE Photonics West 2024

January 2024

115.2-THz Aggregate Bandwidth O-band Coherent DWDMTransmission over High-density 250-μm Coating Multicore Fibre

Daniel J. Elson, Shohei Beppu, Ayumi Inoue(Sumitomo Electric Industries, Ltd.), Daiki Soma, Takuji Nagashima(Sumitomo Electric Industries, Ltd.), Vitaly Mikhailov(OFS Laboratories), Jiawei Luo(OFS Laboratories), Shigehiro Takasaka(Furukawa Electric Co., Ltd.), Daryl Inniss(OFS Laboratories), Noboru Yoshikane, Takehiro Tsuritani, Tetsuya Hayashi(Sumitomo Electric Industries, Ltd.),Yuta Wakayama

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Fibre-Amplifier-Free Coherent Free-Space FM Optical Communications with a >80-dB Link Budget Enabled by Photonic-Crystal Surface-Emitting Lasers

Shota Ishimura, Ryohei Morita(Kyoto University), Takuya Inoue(Kyoto University), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani, Menaka De Zoysa(Kyoto University), Kenji Ishizaki(Kyoto University), Masatoshi Suzuki, Susumu Noda(Kyoto University)

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

FIFO-free 4-core Dual-polarization Optical Hybrid Using a Single Dielectric Metasurface

Kento Komatsu(The University of Tokyo), Go Soma(The University of Tokyo), Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki, Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

25-THz O+S+C+L+U-Band Digital Coherent DWDM Transmission Using a Deployed Fibre-Optic Cable

Daiki Soma, Tomoyuki Kato(Fujitsu Limited), Shohei Beppu, Daniel J. Elson, Hidenobu Muranaka(Fujitsu Limited),Hiroyuki Irie(Fujitsu Limited), Shun Okada(Fujitsu Limited), Yu Tanaka(Fujitsu Limited), Yuta Wakayama, Noboru Yoshikane,Takeshi Hoshida(Fujitsu Limited), Takehiro Tsuritani

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Progress and Challenges of Coupled Core MCF Transmission

Shohei Beppu, Daiki Soma

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Silicon Photonic Delay-Based Reservoir Computing Incorporated with a Multimode Interference Structure

Takashi Kan, Shota Ishimura, Hideaki Tanaka, Hidenori Takahashi, Takehiro Tsuritani, Katsuyuki Utaka(Waseda University), Masatoshi Suzuki

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Investigation of MDL Accumulation in Recirculating Loop Systems Using Coupled-Core Multicore Fibres with a Quasi Mode Scrambler

Shohei Beppu, Daiki Soma, Yuta Wakayama, Noboru Yoshikane

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Towards Universal Paradigm of QoT Estimation over OpticalTransport Network through Graph Neural Structure

Cen Wang, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Demonstration of Power Reduction Tolerability for All-Optical Free-Space Optical Communication Links Using SNR Difference Compensation Scheme

Hidenori Takahashi, Hotaka Hayashi, Shota Ishimura, Abdelmoula Bekkali(TOYO Electric Corporation),Michikazu Hattori(TOYO Electric Corporation), Yuichiro Hara(TOYO Electric Corporation), Yukihiko Suga(TOYO Electric Corporation), Takehiro Tsuritani

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Core-selective Variable-ratio Coupler for Multicore Fiber Applications

Yuta Wakayama, Hidenori Takahashi, Noboru Yoshikane, Takehiro Tsuritani

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

C+L-Band 2,160 km Bidirectional Transmission using Three Vendor-Installed 4-Core Fibre Cables

Daiki Soma, Shohei Beppu, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Low-crosstalk Compact Optical Isolator for 4-core Fiber

Katsuhiro Iwasaki(Kohoku Kogyo Co. Ltd.), Katsuya Kito(Kohoku Kogyo Co. Ltd.), Yuki Horikawa(Kohoku Kogyo Co. Ltd.), Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani, Takashi Kato(Kohoku Kogyo Co. Ltd.)

The 49th European Conference on Optical Communications (ECOC 2023)

October 2023

Numerical Analysis Considering Modal Mixing for Multimode-Interference-Based Photonic Reservoir Computing

Takashi Kan, Shota Ishimura, Hideaki Tanaka, Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki

International Conference on Photonics in Switching and Computing 2023 (PSC2023)

September 2023

Bismuth Doped Fibre Amplifiers Enabling Reach Extension and Repeated Transmission of 400GBASE Signals

Daniel J. Elson, Noboru Yoshikane, Yuta Wakayama

The 28th Optoelectronics and Communications Conference (OECC 2023)

July 2023

Direct Modulation of Membrane DR Laser Involving Photon-Photon Resonance by 5G Mobile Signal in Millimeter-Wave Band

Kosuke Nishimura, Naoki Takahashi(Tokyo Institute of Technology), Shinji Nimura, Keigo Tsutsui(Tokyo Institute of Technology),Nobuhiko Nishiyama(Tokyo Institute of Technology), Hidenori Takahashi, Masatoshi Suzuki(Waseda University)

The 28th Optoelectronics and Communications Conference (OECC 2023)

July 2023

Power-Fading-Free Analog-RoF Transmission using IF/LO Frequency optimization

Shinji Nimura, Kazuki Tanaka, Hirotaka Ochi, Kosuke Nishimura, Ryo Inohara

The 28th Optoelectronics and Communications Conference (OECC 2023)

July 2023

Requirements of SDM fibers for MIMO transmission systems

Shohei Beppu, Daiki Soma, Yuta Wakayama

The 28th Optoelectronics and Communications Conference (OECC 2023)

July 2023

Linear and Kerr nonlinear compensators by continuous-variable photonic quantum computing for digital coherent transmission systems

Shohei Beppu, Kosuke Mitarai(Osaka University), Toshio Mori(Osaka University), Noboru Yoshikane, Kazuhiro Saito

The 28th Optoelectronics and Communications Conference (OECC 2023)

July 2023

Short-pulse generation from photonic-crystal lasers by direct sinusoidal modulation

Ryohei Morita(Kyoto University), Takuya Inoue(Kyoto University), Shota Ishimura, Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani, De Zoysa Menaka(Kyoto University), Kenji Ishizaki(Kyoto University), Masatoshi Suzuki, Susumu Noda(Kyoto University)

The ConConference on Lasers and Electro-Optics 2023 (CLEO 2023)

May 2023

Compact surface-normal coherent receiver with wire-grid polarizers

Go Soma(The University of Tokyo), Warakorn Yanwachirakul(The University of Tokyo), Toshiki Miyazaki(The University of Tokyo), Eisaku Kato(The University of Tokyo), Bunta Onodera(The University of Tokyo), Ryota Tanomura(The University of Tokyo), Taichiro Fukui(The University of Tokyo), Shota Ishimura, Masakazu Sugiyama(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

The ConConference on Lasers and Electro-Optics 2023 (CLEO 2023)

May 2023

Surface-normal dual-polarization coherent receiver using dielectric metasurface

Kento Komatsu(The University of Tokyo), Go Soma(The University of Tokyo), Keigo Mizukami(The University of Tokyo), Shota Ishimura, Hidenori Takahashi, Masatoshi Suzuki, Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

The ConConference on Lasers and Electro-Optics 2023 (CLEO 2023)

May 2023

Study of input SOP dependency on output power per core in coupled-core multicore fibers

Shohei Beppu, Daiki Soma, Yuta Wakayama, Noboru Yoshikane

The 7th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2023)

May 2023

4×400Gb/s Transmission over Deployed Standard Cladding Diameter Multicore Fibre Enabled by Bismuth Doped Fibre Amplifiers

Daniel J. Elson, Noboru Yoshikane, Yuta Wakayama

The 7th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2023)

May 2023

Evaluation of the Connection Characteristics of Step-Index Multi-Core Fibers with Multiple Connectors

Risako Kunishi(Waseda University), Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita(Waseda University)

The 7th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2023)

May 2023

Multi-core Fiber Transmission with Essential Optical Components for Realizing Large-capacity Optical Submarine Cable Systems

Daiki Soma

The 7th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2023)

May 2023

Investigation of Disaster-Resilient Network-Cloud Ecosystem with Openness Disaggregation and Cooperation Technologies

Sugang Xu(NICT), Kiyo Ishii(AIST), Noboru Yoshikane, Subhadeep Sahoo(UC Davis), Sifat Ferdousi(UC Davis), Masaki Shiraiwa(NICT), Yusuke Hirota(NICT), Takehiro Tsuritani, Massimo Tornatore(Politecnico di Milano), Yoshinari Awaji(NICT), Shu Namiki(AIST), Biswanath Mukherjee(UC Davis)

Cyber Physical System enabled by Sensing/Network/AI and Photonics Conference 2023 (CPS-SNAP2023)

April 2023

Experimental Evaluation of MPI Noise Mitigation Effects for Various Modulation Schemes in Analog IFoF-Based Mobile Fronthaul Link

Hirotaka Ochi, Kazuki Tanaka, Shinji Nimura, Kosuke Nishimura, Ryo Inohara, Masatoshi Suzuki

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Enhancement of Network-Cloud Ecosystem Resilience With Openness Disaggregation and Cooperation

Sugang Xu(NICT), Kiyo Ishii(AIST), Noboru Yoshikane, Subhadeep Sahoo(University of California), Sifat Ferdousi(University of California), Masaki Shiraiwa(NICT), Yusuke Hirota(NICT), Takehiro Tsuritani, Massimo Tornatore(Politecnico di Milano), Yoshinari Awaji(NICT), Shu Namiki(AIST), Biswanath Mukherjee(University of California)

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Integrating Nanosecond Optical Switching in Deep Distributed Learning System

Cen Wang

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Performance Requirements for FIFO-Less Multicore Fibre Repeaters in Transatlantic-Class Transmission

Daniel J. Elson, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

9.6-THz Single Fibre Amplifier O-Band Coherent DWDM Transmission

Daniel J. Elson, Yuta Wakayama, Vitaly Mikhailov(OFS Laboratories), Jiawei Luo(OFS Laboratories), Noboru Yoshikane, Daryl Inniss(OFS Laboratories), Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Dynamic Bypass of Wavelength Switching in SDN-Enabled WDM VNTs Over SDM Networks With High bit-Rate Optical Channels

Raul Muñoz(CTTC), Carlos Manso(CTTC), Filippos Balasis, Daiki Soma, Shohei Beppu, Ramon Casellas(CTTC), Lluis Gifre(CTTC), Ricard Vilalta(CTTC), Ricardo Martínez(CTTC), Noboru Yoshikane, Takaehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Automation of Fast Configuration Error Diagnosis in Optical Transport Networks - Natural Language Processing is All You Need

Cen Wang, Noboru Yoshikane, Daniel J. Elson, Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

108-Ch (12-Core×9-WDM) Self-Homodyne Transmission Using Only a Single Laser for 8.64-Tb/s Short-Reach Optical Links

Shota Ishimura, Takashi Kan, Shuntaro Maeda(The University of Tokyo), Takuo Tanemura(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo), Hidenori Takahashi, Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

114 Pbit/s･km Transmission Using Three Vendor-Installed 60-km Standard Cladding Multi-Core Fiber Spans With Multiple Fusion Splicing

Daiki Soma, Shohei Beppu, Yuichi Miyagawa(KDDI), Noboru Yoshikane,Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Real-Time 6-Mode 19-Core Fiber Transmission

Shohei Beppu, Masahiro Kikuta(NEC Platforms), Daiki Soma, Yoichi Yaegashi(NEC Platforms), Koji Igarashi(Osaka University), Masahiro Shigihara(NEC Platforms), Kazuhiko Aizawa(NEC Platforms), Noboru Yoshikane, Takehiro Tsuritani

2023 Optical Fiber Communications Conference and Exhibition (OFC)

March 2023

Real-time MIMO transmission experiments using FPGA based MIMO DSP

Shohei Beppu

2022 International Conference on Emerging Technologies for Communications (ICETC 2022)

November 2022

109.3-Tb/s Transmission over a 3,120 km Uncoupled 4-Core Fiber Using Probabilistic Shaping Techniques

Shohei Beppu, Noboru Yoshikane, Daiki Soma, Takehiro Tsuritani

2022 IEEE Photonics Conference (IPC)

November 2022

All-Optical Dual-Polarization MIMO Processor Based on Integrated Optical Unitary Converter

Ryota Tanomura(The University of Tokyo), Rui Tang(The University of Tokyo), Go Soma(The University of Tokyo), Shota Ishimura, Takuo Tanemura(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo)

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

Proposal and Demonstration of Free-Space Optical Communication Using Lens-Free Photonic-Crystal Surface-Emitting Laser

Shota Ishimura, Ryohei Morita(Kyoto University), Takuya Inoue(Kyoto University), Kosuke Nishimura, Hidenori Takahashi, Takehiro Tsuritani, Menaka Zoysa(Kyoto University), Kenji Ishizaki(Kyoto University), Masatoshi Suzuki, Susumu Noda(Kyoto University)

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

FIFO-Less Core-Pumped Multicore Fibre Amplifier With Fibre Bragg Grating Based Gain Flattening Filter

Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

Highly-Tolerant Free-Space Parallel Optical Wireless Communication Links with Signal-to-Signal SNR Difference Compensation

Hidenori Takahashi, Shota Ishimura, Kosuke Nishimura, Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

Dependence of Q2 on Inter-Core Skew and Mode Dependent Loss in Long Haul Coupled-Core Multicore Fibre Transmission

Shohei Beppu, Daiki Soma, Noboru Yoshikane, Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC2022)

September 2022

Transoceanic-Class Transmission Over Step-Index Profile Standard Cladding 4-Core Fibre With Bidirec tional Transmission Technology

Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

Over 90-km 400GBASE-LR8 Repeatered Transmission with Bismuth-Doped Fibre Amplifiers

Yuta Wakayama, Daniel J. Elson, Vitaly Mikhailov(OFS Laboratories), Rachata Maneekut(Chulalongkorn University), Jiawei Luo(OFS Laboratories), Noboru Yoshikane, Daryl Inniss(OFS Laboratories), Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

10.51-Tbit/s if-Over-Fibre Mobile Fronthaul Link Using SDM/WDM/SCM for Accommodating Ultra High-Density Antennas in Beyond-5G Mobile Communication Systems

Kazuki Tanaka, Shinji Nimura, Shota Ishimura, Kosuke Nishimura, Ryo Inohara, Takehiro Tsuritani, Masatoshi Suzuki

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

Dynamic Upgrade/Downgrade of WDM Link Capacity in SDN-Enabled WDM VNTs Over SDM Networks

Raul Muñoz(CTTC), Carlos Manso(CTTC), Filippos Balasis, Cen Wang, Ricard Vilalta(CTTC), Ramon Casellas(CTTC), Ricardo Martinez(CTTC), Noboru Yoshikane, Takehiro Tsuritani

The 48th European Conference on Optical Communication (ECOC 2022)

September 2022

The Future of Coherent Optical Submarine Communication Systems

Hidenori Takahashi, Daiki Soma, Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Computing-over-Fiber: Application-driven Optical Slicing in Support of Massive-traffic Computing over Metro Network

Cen Wang, Filippos Balasis, Noboru Yoshikane, Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Power-saving Aware SDM Photonic Node with the Throughput Scalable to over Peta bit

Fumikazu Inuzuka(NTT), Hiroshi Hasegawa(Nagoya University), Kohki Shibahara(NTT), Hidenori Takahashi, Takehiro Tsuritani, Kazunori Seno(NTT), Naru Nemoto(NTT), Emmanuel Le Taillandier de Gabory(NEC), Shigeyuki Yanagimachi(NEC), Taiji Sakamoto(NTT), Kazuhide Nakajima(NTT), Masanori Takahashi(Furukawa Electric), Ryuichi Sugizaki(Furukawa Electric), Ryo Nagase(Chiba Institute of Technology), Ken-ichi Sato(AIST), Yutaka Miyamoto(NTT)

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

High-Fidelity and High-Capacity Analog Radio-over-Fiber Transmission

Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani, Masatoshi Suzuki

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Transoceanic MIMO Transmission with Coupled-Core Multicore Fibers

Shohei Beppu, Daiki Soma, Noboru Yoshikane, Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Fiber Nonlinearity Equalization with a Quantum-Enhanced Support Vector Machine

Shohei Beppu, Kazuhiro Saito, Noboru Yoshikane, Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Experiment of Nationwide Multi-Route Skew Cancelling for Dynamic Mapping of MAC Signals over SDM/WDM Network Testbed

Masaki Murakami(Keio University), Yoshihiko Uematsu(Keio University), Satoru Okamoto(Keio University), Naoaki Yamanaka(Keio University),Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani, Takahiro Kodama(Kagawa University), Masahiko Jinno(Kagawa University)

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Protocol Enhancement in Optical Circuit Switched Distributed Deep Learning System

Xiao Xue(Beijing University), Cen Wang, Yuepeng Wu(Beijing University), Noboru Yoshikane, Hongxiang Guo(Beijing University), Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

First Demonstration of Hierarchical SDM/WDM 10-Mode-Fiber Ring Network with Spatial Bypass and Reconfigurable Spatial Add/Drop Multiplexing

Takahiro Kodama(Kagawa University), Shohei Beppu, Daiki Soma, Yuta Wakayama, Noboru Yoshikane, Masahiko Jinno(Kagawa University), Takehiro Tsuritani

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Photodiode-Integrated 8×8 Array-Antenna Module for Analog-RoF Supporting 40-GHz 5G Systems

Shinji Nimura, Shota Ishimura, Kazuki Tanaka, Kosuke Nishimura, Ryo Inohara

The 27th Optoelectronics and Communications Conference (OECC 2022)

July 2022

Long-Haul Coupled-Core Multicore Fiber Transmission and Real-Time MIMO Processing

Shohei Beppu, Daiki Soma, Noboru Yoshikane

Advanced Photonics Congress - Signal Processing in Photonic Communications (SPPCom) 2022

July 2022

Examining the Benefit of Bidirectional Transmission in Amplified Fiber Links

Filippos Balasis, Daniel Elson, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

Advanced Photonics Congress - Signal Processing in Photonic Communications (SPPCom) 2022

July 2022

Issues for Applying Fiber-Wireless Transmission Techniques to Mobile Communication Systems in Beyond-5G Era

Kosuke Nishimura, Takehiro Tsuritani, Shinji Nimura, Kazuki Tanaka, Shota Ishimura, Hidenori Takahashi, Ryo Inohara

The 3rd URSI Atlantic / Asia-Pacific Radio Science Meeting (AT-AP-RASC 2022)

May 2022

High-Capacity Mode Division Multiplexing Transmission Technology

Daiki Soma, Shohei Beppu, Noboru Yoshikane, Takehiro Tsuritani

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

64-QAM Self-Coherent Transmission Using Symmetric Silicon Photonic Stokes-Vector Receiver

Shota Ishimura, Taichiro Fukui(The University of Tokyo), Ryota Tanomura(The University of Tokyo), Go Soma(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

1.314-Tbit/s (576 × 380.16-MHz 5G NR OFDM Signals) SDM/WDM/SCM-Based IF-over-Fiber Transmission for Analog Mobile Fronthaul

Kazuki Tanaka, Shinji Nimura, Shota Ishimura, Kosuke Nishimura, Ryo Inohara, Takehiro Tsuritani, Masatoshi Suzuki

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

Transmission of 400GBASE-LR8 Over 15 km Deployed Step-Index 4-Core fiber for Data Centre Interconnects

Daniel J. Elson, Yuta Wakayama, Shohei Beppu, Daiki Soma, Noboru Yoshikane

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

Dynamic Reconfiguration of WDM Virtual Network Topology over SDM Networks for Spatial Channel Failure Recovery with gRPC Telemetry

Raul Muñoz(CTTC/CERCA), Carlos Manso(CTTC/CERCA), Filippos Balasis, Ramon Casellas(CTTC/CERCA), Ricard Vilalta(CTTC/CERCA), Ricardo Martínez(CTTC/CERCA), Cen Wang, Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

Fiber-to-Application: Optical Slicing to Enhance Application Performance over a Metro Transport Network

Cen Wang, Xiao Xue(BUPT), Noboru Yoshikane, Filippos Balasis, Takehiro Tsuritani, Hongxiang Guo(BUPT)

2022 Optical Fiber Communications Conference and Exhibition (OFC)

March 2022

High-capacity and high-fidelity analog radio-over-fiber mobile fronthaul

Shota Ishimura, Hidenori Takahashi, Ryo Inohara, Kosuke Nishimura, Takehiro Tsuritani, Masatoshi Suzuki

2022 Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West OPTO 2022

January 2022

Analog radio over plastic optical fiber applications for 28 GHz band 5G-NR signals

Hiroki Yasuda(Yazaki Corporation), Takamitsu Aiba(Yazaki Corporation), Shota Ishimura, Kazuki Tanaka, Tomohiro Wakabayashi(Yazaki Corporation), Tetsuya Kawanishi(Waseda University)

The 29th International Conference on Plastic Optical Fibers (POF 2021)

November 2021

Real-time MIMO detection over SDM fibers: Feasibility and challenges

Shohei Beppu, Noboru Yoshikane

Asia Communications and Photonics Conference (ACP 2021)

October 2021

SDN Control Architectures for WDM over SDM (WDMoSDM) Networks

Raul. Muñoz(CTTC/CERCA), Noboru Yoshikane, Carlos Manso(CTTC/CERCA), Ramon Casellas(CTTC/CERCA), Ricard Vilalta(CTTC/CERCA), Ricardo Martínez(CTTC/CERCA), Filippos Balasis, Cen Wang, Takehiro Tsuritani, Itsuro Morita

International Conference on Photonics in Switching and Computing 2021 (PSC 2021)

September 2021

400GBASE-LR4 Transmission Over Field-Deployed Fibre Link Supported by Bismuth-Doped Fibre Amplifier

Yuta Wakayama, Vitaly Mikhailov(OFS Laboratories), Daniel J. Elson, Rachata Maneekut, Jiawei Luo(OFS Laboratories), Cen Wang, Filippos Balasis, Noboru Yoshikane, Daryl Inniss(OFS Laboratories), Takehiro Tsuritani

2021 European Conference on Optical Communication (ECOC)

September 2021

First Demonstration of Dynamic Deployment of SDN-enabled WDM Virtual Network Topologies (VNTs) over SDM networks

Carlos Manso(CTTC/CERCA), Raul Muñoz(CTTC/CERCA), Filippos Balasis, Ramon Casellas(CTTC/CERCA), Ricard Vilalta(CTTC/CERCA), Ricardo Martínez(CTTC/CERCA), Cen Wang, Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita

2021 European Conference on Optical Communication (ECOC)

September 2021

Integration and Control of Heterogeneous Telecom and Data Center Optical Networks Aided by FBD and TAPI for Enhancing Large-scale Optical Path Services and Network Resiliency

Sugang Xu(NICT), Kiyo Ishii(NICT), Noboru Yoshikane, Takehiro Tsuritani, Yoshinari Awaji(NICT), Shu Namiki(NICT)

2021 European Conference on Optical Communication (ECOC)

September 2021

Mode-multiplexed 16QAM transmission over 60-km coupled four-core fibres using real-time MIMO-DSP with high-accuracy frequency offset estimation

Shohei Beppu, Masahiro Kikuta(NEC Platforms), Koji Igarashi(Osaka University), Hiroshi Mukai(NEC Platforms), Masahiro Shigihara(NEC Platforms), Yasuo Saito(NEC Platforms), Daiki Soma, Hidenori Takahashi, Noboru Yoshikane, Takehiro Tsuritani

2021 European Conference on Optical Communication (ECOC)

September 2021

Real-Time Mode-Division-Multiplexed Transmission with Coupled-Core Multicore Fibers

Shohei Beppu

Signal Processing in Photonic Communications (SPPCom) 2021

July 2021

Assessing Capacity of FIFO-less Multicore FiberTransmission in Submarine Cable Systems

Yuta Wakayama, Daniel Elson, Hidenori Takahashi, Noboru Yoshikane, Takehiro Tsuritani

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

Bidirectional IFoF Mobile Fronthaul With DSP-based Channel Multiplexer and Demultiplexer

Kazuki Tanaka, Hsuan-Yung Kao, Shota Ishimura, Kosuke Nishimura, Ryo Inohara, Masatoshi Suzuki

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

85.2-Tbit/s Coupled 4-Core Fiber Transmission over 3,120 km using PS-16QAM Signals

Shohei Beppu, Daiki Soma, Hidenori Takahashi, Noboru Yoshikane,Itsuro Morita, Takehiro Tsuritani

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

End-to-End Management of All Optical Disaggregated Network and Applications with Cloud Native Environment for the Smart World Network Infrastructure

Yusuke Hirota(NICT), Shinya Nakamura(Ubiqube), Kohei Shiomoto(Tokyo City University), Hyde Sugiyama(Red Hat), Noboru Yoshikane, Satoru Okamoto(Keio University), Masaki Murakami(Keio University), Takahiro Hirayama(NICT), Satoshi Yamanoi(OA Laboratory)

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

Scalability of A-RoF Based Mobile Fronthaul Toward Beyond-5G

Kohsuke Nishimura, Shota Ishimura, Hsuan-Yun Kao, Kazuki Tanaka, Ryo Inohara

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

Optical Characterization of Installed Step-Index Profile Standard Cladding Multi-Core Fiber with Multiconnection

Daiki Soma, Shohei Beppu, Hidenori Takahashi, Yuichi Miyagawa(KDDI), Noboru Yoshikane, Takehiro Tsuritani

The 26th Optoelectronics and Communications Conference (OECC 2021)

July 2021

Demonstration of 28-GHz Band Radio Signal Transmission into Vehicle by Analog Radio over Multi-Mode Fiber

Hiroki Yasuda(Waseda University), Toshinori Suzuki(Yazaki Corporation), Hsuan-Yun Kao, Satoshi Tanaka(Yazaki Corporation), Shota Ishimura, Kazuki Tanaka, Naokatsu Yamamoto(NICT), Atsushi Kanno(NICT), Ryo Inohara, Kousuke Nishimura, Takamitsu Aiba(Yazaki Corporation), Tomohiro Wakabayashi(Yazaki Corporation), Tetsuya Kawanishi(Waseda University, NICT)

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

Investigating the Impact of Hybrid Raman-EDFAs in the Cost and Energy Efficiency of C+L Wideband Optical Networks

Filippos Balasis, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 25th International Conference on Optical Network Design and Modelling (ONDM 2021)

June 2021

Usage of Graph Neural Network for Large-Scale Network Performance Evaluation

Cen Wang, Noboru Yoshikane, Takehiro Tsuritani

The 25th International Conference on Optical Network Design and Modelling (ONDM 2021)

June 2021

Enabling Technology for 9.5-dB SNR Enhancement Utilizing Four-Wave Mixing Between a Conjugate Pair of Angle Modulation for Analog Radio-over-Fiber Links

Shota Ishimura, Hidenori Takahashi, Takehiro Tsuritani, and Masatoshi Suzuki

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

Real-time Transoceanic Coupled 4-core Fiber Transmission

Shohei Beppu, Masahiro Kikuta(NEC Platforms, Ltd.), Koji Igarashi(Osaka University), Hiroshi Mukai(NEC Platforms, Ltd.), Masahiro Shigihara(NEC Platforms, Ltd.), Yasuo Saito(NEC Platforms), Daiki Soma, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Masatoshi Suzuki, Takehiro Tsuritani

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

A Generalized Pairwise Optimization Accelerator Unit For Designing Geometric Shaping 64-QAM

Rachata Maneekut, Daniel J. Elson, Shohei Beppu, Hidenori Takahashi, Noboru Yoshikane

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

FIFO-less Core-pump Combiner for Multicore Fiber Amplifier

Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

Acceleration and Efficiency Warranty for Distributed Machine Learning Jobs over Data Center Network with Optical Circuit Switching

Cen Wang, Noboru Yoshikane, Filippos Balasis, Takehiro Tsuritani

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

Blade Abstraction Interface for Diverse Blade Integration and Unified Control of Disaggregate/Legacy ROADMs

Sugang Xu(NICT), Kiyo Ishii(AIST), Noboru Yoshikane, Takehiro Tsuritani, Yoshinari Awaji(NICT), Shu Namiki(AIST)

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

First Scalable Machine Learning Based Architecture for Cloud-native Transport SDN Controller

Carlos Manso(CTTC), Noboru Yoshikane, Ricard Vilalta(CTTC), Raul Munñoz(CTTC), Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Cen Wang, Filippos Balasis, Takehiro Tsuritani, Itsuro Morita

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

50.47-Tbit/s Standard Cladding Ultra-Low-Loss Coupled 4-Core Fiber Transmission over 9,150 km

Daiki Soma, Shohei Beppu, Yuta Wakayama, Seiya Sumita, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Takehiro Tsuritani, Masatoshi Suzuki

2021 Optical Fiber Communications Conference and Exhibition (OFC)

June 2021

Demonstration of Hybrid Probabilistic Geometric Shaping 64QAM Optical Fiber Transmission Using Optimized Constellation for MAP Detection with Hard Decision Decoding

Rachata Maneekut, Daniel J. Elson, Yuta Wakayama, Shohei Beppu, Hidenori Takahashi, Noboru Yoshikane, Takehiro Tsuritani

The 23rd International Conference on Advanced Communication Technology (ICACT 2021)

February 2021

Performance Comparison for Standard Cladding Ultra-Low-Loss Uncoupled and Coupled 4-Core Fibre Transmission over 15,000 km

Daiki Soma, Shohei Beppu, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Takehiro Tsuritani

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

Controlling and Monitoring Optical Network Equipment in Optical SDN Networks

Ricard Vilalta(CTTC), Noboru Yoshikane, Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Takehiro Tsuritani, Itsuro Morita, Raul Muñoz(CTTC)

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

Telemetry-enabled Cloud-native Transport SDN Controller for Real-time Monitoring of Optical Transponders Using gNMI

Ricard Vilalta(CTTC), Carlos Manso(CTTC), Noboru Yoshikane, Raul Muñoz(CTTC), Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Takehiro Tsuritani, Itsuro Morita

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

Uncoupled 4-core Fibre with Ultra-low Loss and Low Inter Core Crosstalk

Masanori Takahashi(Furukawa Electric Co., Ltd.), Koichi Maeda(Furukawa Electric Co., Ltd.), Keiichi Aiso(Furukawa Electric Co., Ltd.), Kazunori Mukasa(Furukawa Electric Co., Ltd.), Ryuichi Sugizaki(Furukawa Electric Co., Ltd.), Daiki Soma, Hidenori Takahashi, Takehiro Tsuritani, Miranda Mitrovic(OFS Fitel Denmark ApS), Bera Pálsdóttir(OFS Fitel Denmark ApS), Yoshihiro Arashitani(Furukawa Electric Co., Ltd.)

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

SSBI-free photonic Armstrong method for ultra-wideband PM signal generation

Shota Ishimura, Hsuan-Yun Kao, Kazuki Tanaka, Kosuke Nishimura, Ryo Inohara, Takehiro Tsuritani, Masatoshi Suzuki

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

End-to-End Demonstration based on hybrid IFoF and Analogue RoF/RoMMF links for 5G Access/In-Building Network System

Hsuan-Yun Kao, Hiroki Yasuda(YAZAKI CORPORATION), Shota Ishimura, Kazuki Tanaka, Takamitsu Aiba(YAZAKI CORPORATION), Tomohiro Wakabayashi(YAZAKI CORPORATION), Kosuke Nishimura, Tetsuya Kawanishi(Waseda University), Ryo Inohara

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

DeepCMS3: A Deep Reinforcement Learning Framework for Core, Mode and Spectrum Sequential Scheduling over Optical Transport Network

Cen Wang, Noboru Yoshikane, Filippos Balasis, Takehiro Tsuritani

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

Experimental Verification on Digital Back Propagation Gain in MCF transmission over 6020-km Uncoupled and Coupled 4-Core Fibres

Shohei Beppu, Daiki Soma, Hidenori Takahashi, Noboru Yoshikane, Itsuro Morita, Takehiro Tsuritani

The 46th European Conference on Optical Communications (ECOC 2020)

December 2020

Recent Progress and Roadmap of Space Division Multiplexing Technologies

Itsuro Morita

2020 International Conference on Emerging Technologies for Communications (ICETC 2020)

December 2020

Numerical simulation of switching of signal path of FM-MCFs by SLM

Yuta Abe(Hokkaido University), Atushi Okamoto(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Akihisa Tomita(Hokkaido University), Daiki Soma, Yuta Wakayama, Takehiro Tsuritani

International Symposium on Imaging, Sensing, and Optical Memory 2020 (ISOM 2020)

November 2020

Spatial Multiple Beam-Steering Transmission for 5G Multi-User MIMO Fiber-Wireless Systems

Hsuan-Yun Kao, Shota Ishimura, Kazuki Tanaka, Kosuke Nishimura, Ryo Inohara

2020 International Topical Meeting on Microwave Photonics (MWP 2020)

November 2020

RF signal phase shift method by optical phase control in SSB-modulated RoF transmission system

Hiroshi Takahashi (Sophia University, Japan), Hsuan-Yun Kao, Shota Ishimura, Kazuki Tanaka

2020 International Topical Meeting on Microwave Photonics (MWP 2020)

November 2020

Analog Radio-over-Fiber Based Mobile Fronthaul Toward Beyond-5G Era

Kosuke Nishimura, Shota Ishimura, Hsuan-Yun Kao, Kazuki Tanaka, Ryo Inohara

2020 International Topical Meeting on Microwave Photonics (MWP 2020)

November 2020

Performance Evaluation of Distributed Computing over Optical Disaggregated Data Centers

Yinghui Xing(BUPT), Cen Wang, Ting Xu(BUPT), Xiong Gao(BUPT), Hongxiang Guo(BUPT), Jian Wu(BUPT)

2020 Asia Communications and Photonics Conference (ACP 2020)

October 2020

Guaranteed-QoT, High-Availability and High-Utilization Core, Mode and Spectrum Sequential Scheduling in Optical Transport Network

Cen Wang, Noboru Yoshikane, Yuta Wakayama, Xiong Gao(BUPT), Hongxiang Guo(BUPT), Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Ultra-High-Capacity Weakly Coupled Mode-Division-Multiplexed Transmission

Daiki Soma, Shohei Beppu, Seiya Sumita, Yuta Wakayama, Noboru Yoshikane, Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Promising Technologies for Future Submarine Cable Systems

Hidenori Takahashi, Daiki Soma, Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Pure-Silica Single-Core to Multi-Core Fiber Coupler with Side-Polishing Approach

Yuta Wakayama, Jaekwon Ko(KS Photonics Inc.), Noboru Yoshikane, Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

IF over Fiber Transmission of 40×400 MHz 256QAM OFDM Signals Using Commercial 100Gb/s EML TOSA for Analog Mobile Fronthaul Networks

Shota Ishimura, Hsuan Yun Kao, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Photodiode-Integrated Array-Antenna Module Enabling 2-D Beamforming for RoF transmission

Shota Ishimura, Hsuan Yun Kao, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Hybrid Probabilistic and Geometric Shaping for 64-QAM Optical Fiber Transmission with Maximum Aposterior Probability Detection

Rachata Maneekut, Shohei Beppu, Hidenori Takahashi, Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Comparison of Intercore-Crosstalk Sources for Multicore Fibre in Recirculating Loop Transmission

Daniel Elson, Shohei Beppu, Hidenori Takahashi, Takehiro Tsuritani

The 25th Opto-Electronics and Communications Conference (OECC 2020)

October 2020

Deep Reinforcement Learning based Computing Job Scheduling in Optical Cloud/Edge Data Center Network

Xiong Gao(BUPT), Cen Wang, Hongxiang Guo(BUPT)

The 16th International Conference on IP + Optical Network (iPOP 2020)

September 2020

Low Earth Orbit Satellite Network Architecture with Optical Inter Satellite Links

Cen Wang, Yong Zhu(BUPT), Noboru Yoshikane, Takehiro Tsuritani

The 16th International Conference on IP + Optical Network (iPOP 2020)

September 2020

Analysis of the Optical Data Center Network Slicing Strategy in Support of Machine Learning Applications with Multiple Patterns

Cen Wang, Noboru Yoshikane, Takehiro Tsuritani

The 16th International Conference on IP + Optical Network (iPOP 2020)

September 2020

Minimizing the Cost of Translucent Space Division Multiplexing Elastic Optical Networks

Filippos Balasis, Noboru Yoshikane, Takehiro Tsuritani

The 16th International Conference on IP + Optical Network (iPOP 2020)

September 2020

Demonstration on Computing Patterns Adjustment for Lower Job Completion Time in Metro Optical Inter-Cloud/Edge DC Network

Xiong Gao(BUPT), Cen Wang, Tsuritani Takehiro, Hongxiang Guo(BUPT)

The 14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020)

August 2020

Ultra-High Capacity Optical Transmission over 10-Pbit/s Based on Optical Space Division Multiplexing Technologies

Masatoshi Suzuki, Daiki Soma, Takehiro Tsuritani, Itsuro Morita

The 22nd International Conference on Transparent Optical Networks (ICTON 2020)

July 2020

Stokes-vector-based Optical Transceivers for Lowcost Direct-detection and Coherent Systems

Shota Ishimura, Kosuke Nishimura, Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

2020 IEEE Photonics Society Summer Topicals Meeting Series (SUM 2020)

July 2020

FPGA Implementation of MIMO DSP in Weaklycoupled Few Mode Fiber Transmission

Koji Igarashi(Osaka University), Shohei Beppu, Takehiro Tsuritani

2020 IEEE Photonics Society Summer Topicals Meeting Series (SUM 2020)

July 2020

Recent Progress and Roadmap of SDM Technologies

Itsuro Morita

2020 IEEE Photonics Society Summer Topicals Meeting Series (SUM 2020)

July 2020

Modeling Dynamic Patterns Adapted Joint Multi-dimension Resource Scheduling via Graph Sequence in Optical Data Center Network

Cen Wang, Takehiro Tsuritani, Xiong Gao(BUPT), Hongxiang Guo(BUPT)

The 24th International Conference on Optical Network Design and Modeling (ONDM 2020)

May 2020

Recent Progress in Space-Division Multiplexing Optical Network Technology

Noboru Yoshikane, Takehiro Tsuritani

The 24th International Conference on Optical Network Design and Modeling (ONDM 2020)

May 2020

Toward Disaster-Resilient Optical Networks with Open and Disaggregated Subsystems

Sugang Xu(NICT), Noboru Yoshikane, Masaki Shiraiwa(NICT), Yusuke Hirota(NICT), Takehiro Tsuritani, Sifat Ferdousi(University of California), Yoshinari Awaji(NICT), Naoya Wada(NICT), Biswanath Mukherjee(University of California)

The 16th International Conference on the Design of Reliable Communication Networks (DRCN 2020)

March 2020

Automatic Resource Mapping Using Functional Block Based Disaggregation Model for ROADM Networks

Kiyo Ishii(AIST), Sugang Xu(NICT), Noboru Yoshikane, Atsuko Takefusa(NII), Shigeyuki Yanagimachi(NEC Corporation), Takeshi Hoshida(Fujitsu Limited), Kohei Shiomoto(Tokyo City University), Tomohiro Kudoh(The University of Tokyo), Takehiro Tsuritani, Yoshinari Awaji(NICT), Shu Namiki(AIST)

2020 Optical Fiber Communications Conference and Exhibition (OFC)

March 2020

Network control and orchestration in SDM and WDM optical networks

Raul Muñoz(CTTC), Noboru Yoshikane, Ricard Vilalta(CTTC), Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Takehiro Tsuritani, Itsuro Morita

2020 Optical Fiber Communications Conference and Exhibition (OFC 2020)

March 2020

First Experimental Demonstration of Cross-SDM/WDM Q-difference Compensation at Multicore Fiber Transmission

Hidenori Takahashi, Daiki Soma, Takehiro Tsuritani

2020 Optical Fiber Communications Conference and Exhibition (OFC 2020)

March 2020

MAP Detection with Self-Detected Threshold Amplitude Algorithm for Probabilistic Shaped 64-QAM Optical Fiber Transmission

Rachata Maneekut, Shohei Beppu, Hidenori Takhashi, Takehiro Tsuritani

The 8th International Electrical Engineering Congress (iEECON 2020)

March 2020

Real-time strongly-coupled 4-core fiber transmission

Shohei Beppu, Koji Igarashi(Osaka University), Hiroshi Mukai(NEC Platforms, Ltd.), Masahiro Kikuta(NEC Platforms, Ltd.), Masahiro Shigihara(NEC Platforms, Ltd.), Daiki Soma, Takehiro Tsuritani, Itsuro Morita

2020 Optical Fiber Communications Conference and Exhibition (OFC)

March 2020

Collective measurement of DMD in 6-mode 19-core fiber using low-coherence digital holography

Yuta Abe(Hokkaido University), Atsushi Okamoto(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Akihisa Tomita(Hokkaido University), Daiki Soma, Yuta Wakayama, Takehiro Tsuritani

2020 Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West OPTO 2020

February 2020

Simplified optical transceivers for Stokes-vector transmission systems

Shota Ishimura, Samir Ghosh(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

2020 Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West OPTO 2020

February 2020

Advanced IF-over-fiber systems for mobile fronthaul

Kazuki Tanaka, Shota Ishimura, Kosuke Nishimura, Tetsuya Kawanishi(Waseda University), Masatoshi Suzuki

The 4th International Conference on Photonics Solutions (ICPS 2019)

November 2019

Low-cost transceivers for multi-dimensional Stokes-vector and coherent transmission systems

Shota Ishimura(The University of Tokyo), Kosuke Nishimura, Yoshiaki Nakano(The University of Tokyo), Takuo Tanemura(The University of Tokyo)

2019 Asia Communications and Photonics Conference (ACP 2019)

November 2019

Digital signal processing for space-division multiplexing (SDM) transmission

Hidenori Takahashi, Daiki Soma, Shohei Beppu, Takehiro Tsuritani

2019 IEEE Photonics Conference (IPC 2019)

September 2019

402.7-Tb/s weakly-coupled 10-mode-multiplexed transmission using rate-adaptive PS PDM-16QAM WDM signals

Daiki Soma, Shohei Beppu, Seiya Sumita, Yuta Wakayama, Takehiro Tsuritani, Itsuro Morita, Masatoshi Suzuki

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

Reconfigurable mode OADM demonstration in weakly-coupled 10-mode-division multiplexed network

Seiya Sumita, Shohei Beppu, Daiki Soma, Takehiro Tsuritani

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

Microbending behavior of randomly-coupled ultra-low-loss multi-core fiber

Hirotaka Sakuma(Sumitomo Electric Industries, Ltd.), Tetsuya Hayashi(Sumitomo Electric Industries, Ltd.), Takuji Nagashima(Sumitomo Electric Industries, Ltd.), Tetsuya Nakanishi(Sumitomo Electric Industries, Ltd.), Daiki Soma, Takehiro Tsuritani, Takemi Hasegawa(Sumitomo Electric Industries, Ltd.)

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

GRPC-based SDN control and telemetry for soft-failure detection of spectral/spacial superchannels

Ricard Vilalta(CTTC), Noboru Yoshikane, Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Shohei Beppu, Daiki Soma, Seiya Sumita, Takehiro Tsuritani, Itsuro Morita, Raul Muñoz(CTTC)

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

First experimental demonstration of Core-to-Core Q-difference compensation in SDM transmission systems

Hidenori Takahashi, Daiki Soma, Takehiro Tsuritani

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

SSBI-free 1024QAM single-sideband direct-detection transmission using phase modulation for high-quality analog mobile fronthaul

Shota Ishimura, Hsuan-Yun Kao, Kazuki Tanaka, Keisuke Nishimura, and Masatoshi Suzuki

The 45th European Conference on Optical Communication (ECOC 2019)

September 2019

First Demonstration of End-to-End Network Slicing with Transport Network Coordination and Edge Cloud Applications in 5G Era

Shinya Nakamura(UBiqube), Kohei Shiomoto(Tokyo City University), Hyde Sugiyama(Red Hat), Yusuke Hirota(NICT), Noboru Yoshikane, Kentaro Sugawara(ALAXALA Networks Corp.), Masatake Miyabe(Fujitsu Laboratories Ltd.), Tomotaka Eguchi(Keysight Technologies Japan K.K.), Satoru Okamoto(Keio University), Masaki Murakami(Keio University), Takahiro Hirayama(NICT), Ikuo Sato(OA Laboratory Co., Ltd.), Thomas Roux(UBiqube)

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

SDN/NFV control and orchestration for SDM networks

Raul Muñoz(CTTC), Ricard Vilalta(CTTC), Josep M Fàbrega(CTTC), Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Orchestration of Optical Networks and Cloud/Edge Computing for IoT Services

Raul Muñoz(CTTC), Ricard Vilalta(CTTC), Ramon Casellas(CTTC), Ricardo Martínez(CTTC), Noboru Yoshikane, Takehiro Tsuritani, Itsuro Morita

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Evaluation of Core-to-Core Q-difference Compensation Scheme against Coherent Crosstalk for SDM Transmission

Hidenori Takahashi, Daiki Soma, Takehiro Tsuritani

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Pattern Switching on Probabilistic Amplitude Shaping for achieving the highest SE in the whole SNR regions

Gan Srirutchataboon(Home dot Tech Co., Ltd.), Shohei Beppu, Rachata Maneekut(Chulalongkorn University), Hidenori Takahashi, Takehiro Tsuritani

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Dynamic complex deep Neural Network Nonlinear Equalizer for 64 QAM Long-haul Transmission Systems

Govind Sharan Yadav(National Tsing Hua University), Takehiro Tsuritani, Shohei Beppu, Hidenori Takahashi, Itsuro Morita, Kai-Ming Feng(National Tsing Hua University), Jhih-heng Yan(National Tsing Hua University)

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Real-Time DSP for Adaptive FIR Filters Based on LMS Algorithm

Masahiro Kikuta(NEC Platforms, Ltd.), Shohei Beppu, Tomoyuki Nagai(Osaka University), Yasuo Saito(NEC Platforms, Ltd.), Takehiro Tsuritani, Koji Igarashi

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Tb/s-class CPRI-equivalent data rate transmission using IF-over-Fiber system for high-capacity mobile fronthaul links

Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Evolution Scenario of Optical Access Infrastructure for Supporting Beyond-5G Mobile Systems

Kazuki Tanaka, Shota Ishimura, Abdelmoula Bekkali, Kosuke Nishimura, Masatoshi Suzuki

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Analytical model for transmission performance of single mode multicore fibre with nonlinearity compensation

Daniel J. Elson, Daniel Semrau(UCL), Hidenori Takahashi, Takehiro Tsuritani

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

Highly Accurate Mode Conversion Using Iterative Spatial Cross Modulation

Tomohiro Maeda(Hokkaido University), Atsushi Okamoto(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Akihisa Tomita, Yuta Wakayama, Takehiro Tsuritani

The 24th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2019 (OECC/PSC 2019)

July 2019

125-μm-cladding low-loss uncoupled four-core fiber

Hirotaka Sakuma (Sumitomo), Tetsuya Hayashi (Sumitomo), Tetsuya Nakanishi (Sumitomo), Daiki Soma, Takehiro Tsuritani and Takemi Hasegawa (Sumitomo)

The 5th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2019).

May 2019

MIMO capacity analysis for the MMSE detection in strongly-coupled SDM systems

Shohei Beppu, Daiki Soma, Hidenori Takahashi, Takehiro Tsuritani

The 5th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2019).

May 2019

On the effect of back propagation bandwidth on nonlinear compensation in multicore fibres

Daniel J. Elson, Hidenori Takahashi, Takehiro Tsuritani

The 5th International Symposium on Extremely Advanced Transmission Technologies (EXAT 2019).

May 2019

A novel carrier-cooperation scheme with an incentive for offering emergency lightpath support in disaster recovery

Sugang Xu(NICT), Noboru Yoshikane, Naoki Miyata(NTT Communications Corporation), Masaki Shiraiwa(NICT), Takehiro Tsuritani, Xiaocheng Zhang(NTT Communications Corporation), Yoshinari Awaji(NICT), Naoya Wada(NICT)

The 23rd International IFIP Conference on Optical Network Design and Modeling (ONDM 2019)

May 2019

State-of-the-Art and Future of Submarine Cable System Technology

Hidenori Takahashi

The 23rd International IFIP Conference on Optical Network Design and Modeling (ONDM 2019)

May 2019

8-ary Stokes-vector signal generation and transmission employing a simplified transmitter

Samir Ghosh(The University of Tokyo), Shota Ishimura, Takahiro Suganuma(The University of Tokyo), Takuo Tanemura(The University of Tokyo), Yoshiaki Nakano(The University of Tokyo)

2019 Conference on Lasers and Electro-Optics (CLEO 2019)

May 2019

Versatile Optical Path Calculation and Monitoring Using Common YANG Model

Junichi Kawasaki, Seiya Sumita, Genichi Mori, Masanori Miyazawa, Takehiro Tsuritani

2019 IFIP/IEEE International Symposium on Integrated Network Management

April 2019

Improving DML-based OFDM Transmission by a Filter-aided Neural Network Equalizer

Wei-Hsiang Huang(National Sun Yat-sen University), Chung-Wen Wang(National Sun Yat-sen University), Chia-Chien Wei(National Sun Yat-sen University), Hidenori Taga, and Takehiro Tsuritani

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

Applications of SDN-enabled optical transport network and cloud/edge computing technology

Noboru Yoshikane

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

Field Test of Installed High-Density Optical Fiber Cable with Multi-Core Fibers toward Practical Deployment

Takehiro Tsuritani, Daiki Soma, Yuta Wakayama, Yuichi Miyagawa, Mikoto Takahashi, Itsuro Morita, Koichi Maeda(Furukawa Electric Co., LTD), Kohei Kawasaki(Furukawa Electric Co., LTD), Toshikazu Matsuura(Furukawa Electric Co., LTD), Masayoshi Tsukamoto(Furukawa Electric Co., LTD), Ryuichi Sugizaki(Furukawa Electric Co., LTD)

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

SDN-enabled Scaling up/down of SDM Super-Channels Exploiting Spatial Modes with Adaptive MIMO Equalization and Modulation Format Assignment

Raul Muñoz(CTTC), Noboru Yoshikane, Josep Maria Fàbrega(CTTC), Laura Rodríguez(CTTC), Ricard Vilalta(CTTC), Daiki Soma, Shohei Beppu, Seiya Sumita, Ramon Casellas(CTTC), Ricardo Martinez(CTTC), Takehiro Tsuritani, Itsuro Morita

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

Optical Access Technology for B5G MFH/MBH

Kohsuke Nishimura, Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Haruhisa Hirayama, Yu Tsukamoto, Shinobu Nanba, Masatoshi Suzuki

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

120-Gb/s DP-QPSK Transmission using Polarization-Diversity Stokes-Analyzer-Based Coherent Receiver

Shota Ishimura, Takuo Tanemura(The University of Tokyo), Kohsuke Nishimura

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

Mode-dependent Probabilistic Shaping for Highly-Efficient Weakly Coupled 10-Mode Fiber Transmission

Shohei Beppu, Daiki Soma, Yuta Wakayama(KDDI), Seiya Sumita, Koji Igarashi(Osaka University), Hidenori Takahashi, Takehiro Tsuritani

2019 Optical Fiber Communications Conference and Exhibition (OFC)

March 2019

High-capacity IF-over-fiber transmission technology for next-generation mobile front-haul links

Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

2019 Next-Generation Optical Communication: Components, Sub-Systems, and Systems VIII

February 2019

Accuracy of Mode Conversion based on Dual-Phase Modulation using Two Spatial Light Modulators

Tomohiro Maeda(Hokkaido University), Atsushi Okamoto(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Akihisa Tomita(Hokkaido University), Yuta Wakayama,Takehiro Tsuritani

2018 23nd Microoptics Conference (MOC)

October 2018

10 Pbit/s SDM/WDM Transmission

Daiki Soma, Takehiro Tsuritani, Itsuro Morita

2018 IEEE Photonics Conference (IPC)

October 2018

Experimental Evaluation of Channel Number Dependency in Vector-Domain Signal Quality Equalization to Mitigate Core-to-Core Q-Difference for SDM transmission

Hidenori Takahashi, Takehiro Tsuritani

2018 44th European Conference on Optical Communication (ECOC)

September 2018

Long-Haul MCF Transmission Using Full C+L-Band 19-Core Cladding-Pumped EDFA

Daiki Soma, Shohei Beppu, Koichi Maeda(Furukawa Electric Co., Ltd.), Shigehiro Takasaka(Furukawa Electric Co., Ltd.), Ryuichi Suqizaki(Furukawa Electric Co., Ltd.), Hidenori Takahashi, Takehiro Tsuritani

2018 44th European Conference on Optical Communication (ECOC)

September 2018

SDN Control and Monitoring System for Soft-Failure Detection and Optical Restoration of Spectral/Spatial Superchannels

Raul Muñoz(CTTC), Noboru Yoshikane , Josep Maria Fabrega(CTTC), Ricard Vilalta(CTTC), Rodríguez Laura(CTTC), Michela Svaluto Moreolo(CTTC), Ramon Casellas(CTTC), Ricardo Martinez(CTTC), Shohei Beppu , Daiki Soma, Takehiro Tsuritani, Itsuro Morita

2018 44th European Conference on Optical Communication (ECOC)

September 2018

Decision-Directed Adaptive PDL-Compensation Algorithm for Stokes Vector Receivers

Shota Ishimura, Kosuke Nishimura

2018 44th European Conference on Optical Communication (ECOC)

September 2018

First Experimental Demonstration of 5G Mobile Fronthaul Consisting of Cascaded IF-over-Fiber Links, Frequency Converters and a Channel Selector

Kazuki Tanaka, Abdelmoula Bekkali, Hsuan-Yun Kao(National Taiwan University), Shota Ishimura , Kouske Nishimura, Masatoshi Suzuki

2018 44th European Conference on Optical Communication (ECOC)

September 2018

High-Capacity Mobile Fronthaul Transmission Using IF-Over-Fiber Technology for Next-Generation C-RAN Architectures

Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama)

August 2018

SDN control and monitoring of SDM/WDM and packet transport networks for 5G fronthaul/backhaul

Raul Muñoz(CTTC), osep Maria Fàbrega(CTTC), Ricard Vilalta(CTTC), Michela Svaluto Moreolo(CTTC), Ricardo Martínez(CTTC), Ramon Casellas(CTTC), N. Yoshikane, T. Tsuritani, I. Morita

2018 IEEE Photonics Society Summer Topical Meeting Series (SUM 2018)

July 2018

10 Pbit/s transmission using space-division-multiplexing

Itsuro Morita, Daiki Soma, Takehiro Tsuritani

2018 IEEE Photonics Society Summer Topical Meeting Series (SUM 2018)

July 2018

High-capacity Few-mode Multicore Fiber Transmission

Yuta Wakayama, Daiki Soma, Shohei Beppu, Takehiro Tsuritani

Advanced Photonics Congress 2018 (APC 2018)

July 2018

Weakly-Coupled Mode Multiplexed Optical Fiber Transmission

Takehiro Tsuritani, Daiki Soma

The 23rd Opto-Electronics and Communications Conference (OECC 2018)

July 2018

Channel Number Dependency of Vector-Domain Signal Quality Equalization to Mitigate Core-to-Core Q-Difference

Hidenori Takahashi, Takehiro Tsuritani

The 23rd Opto-Electronics and Communications Conference (OECC 2018)

July 2018

78.41-Gb/s Direct-Detection OFDM Transmission over 80-km SMF using Four-State Chirp-Control with DEMZM

Shota Ishimura, Kosuke Nishimura

The 23rd Opto-Electronics and Communications Conference (OECC 2018)

July 2018

Radio-over-Fiber Transmission Technology for Future Mobile Access Network toward Beyond-5G Era

Kosuke Nishimrua, Shota Ishimura, Kazuki Tanaka, Abdelmoula Bekkali, Shinobu Nanba, Masatoshi Suzuki

The 23rd Opto-Electronics and Communications Conference (OECC 2018)

July 2018

Experimental Evaluation on Switching Operation for Mode and Wavelength Switched Network (M-WSON) using Weakly-coupled Few-Mode Fiber

Seiya Sumita, Daiki Soma, Shohei Beppu, Yuta Wakayama, Hidenori Takahashi, Takehiro Tsuritani

The 23rd Opto-Electronics and Communications Conference (OECC 2018)

July 2018

Clustering and Centralized Resource Scheduling of 3D In-building Small Cells for Intra MAC Functional Split Control-/User-plane Decoupled CRAN

Rony Kumer Saha, Shinobu Nanba, Kosuke Nishimura

IEEE International Conference on Communications 2018 (ICC 2018)

May 2018

High Capacity Mobile Fronthaul using DP-MZM-based IF-over-Fiber System with 1-Tbit/s CPRI-Equivalent Data Rate

Abdelmoula Bekkali, Shota Ishimura, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

IEEE International Conference on Communications 2018 (ICC 2018)

May 2018

EDF Length Dependence of Amplification Characteristics of Cladding Pumped 19-core EDFA

Shigehiro Takasaka(Furukawa Electric Co., Ltd.), Koichi Maeda(Furukawa Electric Co., Ltd.), Kohei Kawasaki(Furukawa Electric Co., Ltd.), Kazuaki Yoshioka(Furukawa Electric Co., Ltd.), Hajime Oshio(Furukawa Electric Co., Ltd.), Ryuichi Sugizaki(Furukawa Electric Co., Ltd.), Hidenori Takahashi, Takehiro Tsuritani, Masato Shiino(Furukawa Electric Co., Ltd.)

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

Low-loss and Low-crosstalk All-fiber-based Six-mode Multiplexer and Demultiplexer for Mode-multiplexed QAM Signals in C-band

Koji Igarashi(Osaka University),Yuta Wakayama, Daiki Soma, Takehiro Tsuritani, Itsuro Morita, Kyung Jun Park(KS Photonics), Jaekwon Ko(KS Photonics), Byoung Yoon Kim(KAIST)

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

266.1-Tbit/s Repeatered Transmission over 90.4-km 6-mode Fiber Using Dual C+L-band 6-mode EDFA

Yuta Wakayama, Daiki Soma, Shohei Beppu, Seiya Sumita, Koji Igarashi(Osaka University), Takehiro Tsuritani

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

Power-fading-free IF-over-fiber Transmission with DEMZM using Simple Chirp Control for Highcapacity Mobile Fronthaul

Shota Ishimura, Abdelmoula Bekkali, Kazuki Tanaka, Kosuke Nishimura, Masatoshi Suzuki

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

SDN-enabled Sliceable Multi-dimensional (Spectral and Spatial) Transceiver Controlled with YANG/NETCONF

Raul Muñoz(CTTC), Noboru Yoshikane, Ramon Casellas(CTTC), Josep Fabrega(CTTC), Ricard Vilalta(CTTC), Michela Svaluto Moreolo(CTTC), Laia Nadal(CTTC), Daiki Soma, Yuta Wakayama, Shohei Beppu, Seiya Sumita, Takehiro Tsuritani, Itsuro Morita

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

First Experimental Demonstration of Disaggregated Emergency Optical System for Quick Disaster Recovery

Masaki Shiraiwa(NICT), Noboru Yoshikane, Sugang Xu(NICT), Takehiro Tsuritani, Naoki Miyata(NTTCommunications Corporation), Tatsuo Mori(NTTCommunications Corporation), Masatake Miyabe(Fujitsu Ltd.), Toru Katagiri(Fujitsu Ltd.), Sota Yoshida5(Mitsubishi Electric Corporation), Masaki Tanaka(Mitsubishi Electric Corporation), Tomofumi Hayashi(Red Hat K. K), Hidetsugu Sugiyama(Red Hat K. K), Ikuo Satou(OA Laboratory Corporation), Mashito Mikuni(Keio University), Satoru Okamoto(Keio University), Naoaki Yamanaka(Keio University), Yoshinari Awaji(NICT), Naoya Wada(NICT)

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

Node Internal Modeling for Network Recovery with Emergency Optical Systems

Sugang Xu(NICT), Noboru Yoshikane, Masaki Shiraiwa(NICT), Takehiro Tsuritani, Hiroaki Harai(NICT), Yoshinari Awaji(NICT), Naoya Wada(NICT)

2018 Optical Fiber Communications Conference and Exposition (OFC 2018)

March 2018

Selective spatial mode attenuator using phase-intensity-phase modulation toward mode division multiplexing transmission

Zihan Zhou(Hokkaido University), Atsushi Okamoto(Hokkaido University), Shimpei Shimizu(Hokkaido University), Akihisa Tomita(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Yuta Wakayama, Takehiro Tsuritani

SPIE Photonics West 2018

January 2018

Measurement of differential mode delay using reference-free low-coherence digital holography

Shogo Hoshino(Hokkaido University), Atsushi Okamoto(Hokkaido University), Yuta Goto(Hokkaido University), Kazuhisa Ogawa(Hokkaido University), Akihisa Tomita(Hokkaido University), Yuta Wakayama, Takehiro Tsuritani

SPIE Photonics West 2018

January 2018