Ultra-High Capacity WDM Transmission Using Spectrally-Efficient PDM 16-QAM Modulation and C- and Extended L-Band Wideband Optical Amplification

Akihide Sano, Hiroji Masuda, Takayuki Kobayashi, +9

Journal of Lightwave Technology

PhotonicsOptical MaterialsEngineeringOptical AmplificationOptical Transmission System +13

Experimental demonstration of multi-degree colorless, directionless, contentionless ROADM for 127-Gbit/s PDM-QPSK transmission system

Yohei Sakamaki, Takeshi Kawai, Tetsuro Komukai, +4

Optics Express

Free-space Optical NetworkPhotonicsContentionless RoadmMulti-degree Roadm NodeEngineering +13

64QAM modulator with a hybrid configuration of silica PLCs and LiNbO 3 phase modulators for 100-Gb/s applications

Hiroshi Yamazaki, Takashi Yamada, Takashi Goh, +2

Optical MaterialsEngineeringOptical Transmission SystemOptical ModulationOptical Properties +14

Low-Loss Y-Branch Waveguides Designed by Wavefront Matching Method

Yohei Sakamaki, Takashi Saida, Toshikazu Hashimoto, +1

Journal of Lightwave Technology

WaveguidesEngineeringElectromagnetic CompatibilityOptical PropertiesGuided-wave Optic +14

Compact 111-Gbit/s integrated RZ-DQPSK modulator using hybrid assembly technique with silica-based PLCs and LiNbO<inf>3</inf> devices

Takashi Yamada, Yohei Sakamaki, Tomohiro Shibata, +3

PhotonicsElectrical EngineeringHybrid Assembly TechniqueEngineeringOptical Transmission System +12

All-in-One 112-Gb/s DP-QPSK Optical Receiver Front-End Module Using Hybrid Integration of Silica-Based Planar Lightwave Circuit and Photodiode Arrays

T. Ohyama, I. Ogawa, Hiromasa Tanobe, +11

IEEE Photonics Technology Letters

Free-space Optical NetworkPhotonicsEngineeringOptical Transmission SystemPlc Waveguides +10

Reduction of phase-difference deviation in 90.DEG. optical hybrid over wide wavelength range

Yohei Sakamaki, Yusuke Nasu, Toshikazu Hashimoto, +3

IEICE Electronics Express

Quadrature ComponentsPhotonicsWide Wavelength RangeOptical MaterialsEngineering +13

86-Gbit/s differential quadrature phase-shift-keying modulator using hybrid assembly technique with planar lightwave circuit and LiNbO3 devices

Takashi Yamada, Yohei Sakamaki, Takashi Saida, +3

PhotonicsHybrid Assembly TechniqueEngineeringLinbo3 Devices86-Gbit/s Dqpsk Modulator +12

Evaluation of optical filtering penalty in digital coherent detection system

Yohei Sakamaki, Takeshi Kawai, Tetsuro Komukai, +2

IEICE Communications Express

Free-space Optical NetworkPhotonicsOptical System AnalysisEngineeringOptical Transmission System +12