Hajime Shoji

11 papers Journal 3Unranked 8
YearRankTypeTitle / Venue / Authors
2020 J jnl
Highly Reliable and Compact InP-Based In-Phase and Quadrature Modulators for Over 400 Gbit/s Coherent Transmission Systems.
IEICE Trans. Electron.
Hajime Tanaka, Tsutomu Ishikawa, Takashi Kitamura, Masataka Watanabe, Ryuji Yamabi, Ryo Yamaguchi, Naoya Kono, Takehiko Kikuchi, Morihiro Seki, Tomokazu Katsuyama, Mitsuru Ekawa, Hajime Shoji
2019 — conf
850/900-nm VCSEL Arrays for 400 Gbit/s BiDi Applications.
OECC/PSC
Ryosuke Kubota, Takeshi Aoki, Takashi Ishizuka, Masaki Yanagisawa, Hajime Shoji
2017 J jnl
InP-Based Monolithic Integration Technologies for 100/200Gb/s Pluggable Coherent Transceivers.
IEICE Trans. Electron.
Hideki Yagi, Yoshihiro Yoneda, Mitsuru Ekawa, Hajime Shoji
2015 — conf
Dynamic parametric dispersion compensation using FPGA pump controller and dispersion monitor.
OFC
Ken Tanizawa, Hiroyuki Matsuura, Kensuke Ogawa, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Shigehiro Takasaka, Hidenori Iwai, Kazuya Ota, Haruhiko Kuwatsuka, Yoichi Oikawa, Takeshi Yagi, Hajime Shoji, Shu Namiki
2015 J jnl
High receiver responsivity and low dark current of InP-based pin-photodiode array monolithically integrated with 90° hybrid and spot-size converter using selective embedding regrowth.
IEICE Electron. Express
Hideki Yagi, Naoko Inoue, Takehiko Kikuchi, Ryuji Masuyama, Tomokazu Katsuyama, Yoshihiro Tateiwa, Katsumi Uesaka, Yoshihiro Yoneda, Masaru Takechi, Hajime Shoji
2015 — conf
Optical-comb-line selection from a low-power/low-OSNR comb using a low-coherence semiconductor laser for flexible ultra-dense short range transceivers.
OFC
Aaron Albores-Mejia, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Hajime Shoji, Haruhiko Kuwatsuka
2014 — conf
A compact low-power 224-Gb/s DP-16QAM modulator module with InP-based modulator and linear driver ICs.
OFC
Taizo Tatsumi, Naoki Itabashi, Tomoko Ikagawa, Naoya Kono, Morihiro Seki, Keiji Tanaka, Kazuhiro Yamaji, Yasushi Fujimura, Katsumi Uesaka, Takashi Nakabayashi, Hajime Shoji, Shoichi Ogita
2014 — conf
Hardware efficient QAM16 all-optical carrier recovery using a single optically-stabilized injection-locked semiconductor laser.
ECOC
Aaron Albores-Mejia, Toshimitsu Kaneko, Eiichi Banno, Katsumi Uesaka, Hajime Shoji, Haruhiko Kuwatsuka
2013 — conf
Compact and low power DP-QPSK modulator module with InP-based modulator and driver ICs.
OFC/NFOEC
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
2013 — conf
Fast wavelength switching of fully heater-tuned CSG-DR lasers.
OFC/NFOEC
Hiroyuki Matsuura, Toshimitsu Kaneko, Ken Tanizawa, Eiichi Banno, Katsumi Uesaka, Haruhiko Kuwatsuka, Shu Namiki, Hajime Shoji
2013 — conf
High-efficient InP-based balanced photodiodes integrated with 90° hybrid MMI for compact 100 Gb/s coherent receiver.
OFC/NFOEC
Hideki Yagi, Naoko Inoue, Yutaka Onishi, Ryuji Masuyama, Tomokazu Katsuyama, Takehiko Kikuchi, Yoshihiro Yoneda, Hajime Shoji