Yasuyuki Yamauchi | Researchain

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Featured researches published by Yasuyuki Yamauchi.

optical fiber communication conference | 2013

Compact and low power DP-QPSK modulator module with InP-based modulator and driver ICs

Naoya Kono; Takamitsu Kitamura; Hideki Yagi; Naoki Itabashi; Taizo Tatsumi; Yasuyuki Yamauchi; Kosuke Fujii; Kazuhiko Horino; Shingo Yamanaka; Keiji Tanaka; Kazuhiro Yamaji; Chie Fukuda; Hajime Shoji

A compact 128 Gbit/s DP-QPSK modulator module including driver ICs and polarization multiplexing micro-optics is demonstrated. A dissipation power of only 3.2 W was achieved with a low differential driver output voltage of 2.5 Vpp.

optical fiber communication conference | 2010

High-power and low phase noise full-band tunable LD for coherent applications

Toshimitsu Kaneko; Yasuyuki Yamauchi; H. Tanaka; Toyotoshi Machida; Tsutomu Ishikawa; Takuya Fujii; Hajime Shoji

High output power and low noise performances of CSG-DR-LD have been investigated. Kink-free fiber output power > 60 mW over C-band with high SMSR have been demonstrated. Measured phase noise is lower than 170 kHz, exhibiting excellent noise properties as a monolithic and single stripe tunable LD. These characteristics reveal that CSG-DR-LD is a promising light source for the future digital coherent applications.

17th Microopics Conference (MOC) | 2011

A single-stripe tunable laser operated at constant temperature using thermo-optic effect

Toshimitsu Kaneko; Yasuyuki Yamauchi; Katsumi Uesaka; Hajime Shoji

Archive | 2010

Coherent optical communication receiver and optical axis adjusting method thereof

Masaru Takechi; Yoshihiro Tateiwa; Toru Watabe; Yasuyuki Yamauchi; 康之山内; 勝武智; 徹渡部; 義弘立岩

Archive | 2010

OPTICAL MODULE WITH ENHANCED ROBUSTNESS OF TEMPERATURE CONTROLLING DEVICE

Toru Watanabe; Yasuyuki Yamauchi; Yoshihiro Tateiwa

Archive | 2014

OPTICAL MODULATOR MODULE AND SEMICONDUCTOR OPTICAL MODULATOR

Chie Fukuda; Naoya Kono; Morihiro Seki; Kazuhiro Yamaji; Yasuyuki Yamauchi; Keiji Tanaka; Taizo Tatsumi; Naoki Itabashi

Archive | 2014

OPTICAL MODULE OUTPUTTING POLARIZATION COMBINED OPTICAL BEAM

Munetaka Kurokawa; Tomoya Saeki; Yasushi Fujimura; Kazuhiro Yamaji; Yasuyuki Yamauchi

Archive | 2017

Optical module implementing with optical source, optical modulator, and wavelength detector, and a method to assemble the same

Kazuhiro Yamaji; Yasushi Fujimura; Toru Watanabe; Yasuyuki Yamauchi; Tomoya Saeki; Munetaka Kurokawa

Archive | 2014

OPTICAL MODULE INCLUDING SEMICONDUCTOR OPTICAL MODULATOR

Kazuhiro Yamaji; Yasuyuki Yamauchi

Archive | 2013

Light modulation module, semiconductor light modulation element

Chie Fukuda; 智恵福田; Naoya Kono; 直哉河野; Morihiro Seki; 守弘関; Kazuhiro Yamaji; 和宏山路; Yasuyuki Yamauchi; 康之山内; Keiji Tanaka; 啓二田中; Taizo Tatsumi; 泰三巽; Naoki Itabashi; 直樹板橋

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