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

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

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

KDDI Research members win 2022 IEEE Photonics Technology Letters Best Paper Award

World's First Successful Demonstration of High-Power Free-Space Optical Communication Using Photonic-Crystal Surface-Emitting Lasers (PCSELs)

Development and Demonstration of World-leading Technologies that Increase Submarine Optical Cable Capacity with Multicore Fiber

World first successful demonstration of wireless network deployment methodology for Beyond 5G

Development of a new transmission method for nine-fold improvement of optical fiber signal-to-noise ratio

Simple but Accurate Prediction for Optical Network Management

A New Record of 2048-QAM Transmission over Optical Fiber with COTS Devices