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Research and development on innovative technologies for next-generation optical infrastructure toward Beyond 5G and 6G era.

News Release&Topics

September 25, 2025

World’s First Successful Remote Diagnosis for Multicore Optical Fiber Cable

March 26, 2025

World's First Successful Demonstration of Quantum Key Distribution Technology for Multiplexing Over 30 Tbps of High-Capacity Data and Secret Keys

Advanced Technology Laboratories
December 4, 2023

Fujitsu and KDDI Research successfully implement large-capacity multiband wavelength multiplexing transmission with installed optical fiber

Advanced Technology Laboratories
October 20, 2023

World’s First Successful Experiments in Ultrawideband Optical Fiber Transmission at 115.2 THz, 24 Times Broader Than Conventional Bandwidth

Advanced Technology Laboratories
May 18, 2023

Utilization of ultrawide bands to increase the capacity of optical fiber communication: The world’s first successful O-band coherent high-density wavelength division multiplexing transmission experiment

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Publications

Experimental Demonstration of FDM/WDM-based A-RoF Link for Expanding Coverage Areas of Distributed MIMO

Shinji Nimura, Kazuki Tanaka, Ryo Inohara

2025 Photonics and Electromagnetics Research Symposium (PIERS 2025)

December 2025

Hybrid Communication System Consisting of CascadedOptical Wireless Link and Terahertz-band Wireless Link

Kosuke Nishimura, Kenichi Kashima(Kokusai Denki Electric),Michikazu Hattori(Toyo Electric Corporation), Atsunobu Ohta(Dexerials Photonics Solutions Corporation), Ryotaro Manabe(Kokusai Denki Electric), Yuichiro Hara(Toyo Electric Corporation), Yukihiko Suga(Toyo Electric Corporation), Hidenori Takahashi, Takehiro Tsuritani, Hiroshi Murata (Mie University)

2025 Photonics and Electromagnetics Research Symposium (PIERS 2025)

December 2025

Demonstration of Millimetre-Wave Antenna Distribution over IFoF System with TDD Timing-Aligned Remote Beam Control

Shinji Nimura, Kazuki Tanaka, Ryo Inohara, Takehiro Tsuritani

2025 European Conference on Optical Communications (ECOC 2025)

September 2025

Silicon Nitride TE-Pass Polarizer for E+S+C+L Bands

Abdulaziz E. Elfiq,; Shota Ishimura, Takashi Kan, Hidenori Takahashi, Takehiro Tsuritani

2025 European Conference on Optical Communications (ECOC 2025)

September 2025

Ultra-Low Crosstalk FSO Circulator for Full C-Band WDM Bidirectional Satellite Communication

Takashi Kan, Kensuke Murakami, Shota Ishimura, Akihiko Nishitani, Tomonori Yazaki, Shin Fukuhara, Akira Akasaka, Hidenori Takahashi, Takehiro Tsuritani

2025 European Conference on Optical Communications (ECOC 2025)

September 2025

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Awards

2025.7.2

OECC/PSC 2025「Best Paper Award」

WD1-5 22.8-GHz Optical Frequency Comb Generation at 780nm based on Regeneratively Mode locked Laser for Visible-light Coherent DWDM Communications

Takashi Kan, Shota Ishimura, Abdulaziz E. Elfiqi, Hidenori Takahashi, Takehiro Tsuritani

2023.7.4

OECC2023（the 28th Optoelectronics and Communications Conference）「Best Paper Award in Industry Innovation」

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

Shinji Nimura, Kazuki Tanaka, Hirotaka Ochi, Kousuke Nishimura, Ryou Inohara

2023.3.6

OFC2023「Top Scored Paper」

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

Cen Wangk, Noboru Yoshikane, Daniel Elson, Takehiro Tsuritani

2023.3.6

OFC2023「Top Scored Paper」

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 Corporation), Noboru Yoshikane, Takehiro Tsuritani

2023.3.6

OFC2023「Top Scored Paper」

Real-Time 6-Mode 19-Core Fiber Transmission

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

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