DQPSK/QPSK modulation at 40-60 Gb/s using low-loss nested silicon Mach-Zehnder modulator. - Kazuhiro Goi; Hiroyuki Kusaka; Akira Oka; Yoshihiro Terada; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (OFC/NFOEC, 2013)

20-Gb/s DPSK transmission with 550-ps/nm dispersion tolerance using silicon Mach-Zehnder modulator. - Kazuhiro Goi; Hiroyuki Kusaka; Akira Oka; Yoshihiro Terada; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (OFC/NFOEC, 2013)

Silicon Mach-Zehnder modulator using low-loss phase shifter with bottom PN junction formed by restricted-depth doping. - Kazuhiro Goi; Kensuke Ogawa; Yong Tsong Tan; Vivek Dixit; Soon Thor Lim; Ching Eng Png; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (IEICE Electron. Express, 2013)

Characterization of Silicon Mach-Zehnder Modulator in 20-Gbps NRZ-BPSK Transmission. - Kazuhiro Goi; Kenji Oda; Hiroyuki Kusaka; Akira Oka; Yoshihiro Terada; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (IEICE Trans. Electron., 2013)

128Gb/s DP-QPSK silicon modulator module integrated with driver amplifiers. - Kazuhiro Goi; Kenji Oda; Yasuhiro Mashiko; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (ECOC, 2014)

128-Gb/s DP-QPSK using low-loss monolithic silicon IQ modulator integrated with partial-rib polarization rotator. - Kazuhiro Goi; Hiroyuki Kusaka; Akira Oka; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (OFC, 2014)

Fundamental characteristics and high-speed applications of carrier-depletion silicon Mach-Zehnder modulators. - Kensuke Ogawa; Hiroki Ishihara; Kazuhiro Goi; Yasuhiro Mashiko; Soon Thor Lim; Min Jie Sun; Sean Seah; Ching Eng Png; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (IEICE Electron. Express, 2014)

130-Gbps DMT transmission using silicon Mach-Zehnder modulator with chirp control at 1.55-µm. - Yutaka Kai; Masato Nishihara; Toshiki Tanaka; Ryo Okabe; Tomoo Takahara; Jens C. Rasmussen; Hiroki Ishihara; Kazuhiro Goi; Kensuke Ogawa (OFC, 2015)

Dynamic parametric dispersion compensation using FPGA pump controller and dispersion monitor. - Ken Tanizawa; Hiroyuki Matsuura; Kensuke Ogawa; Toshimitsu Kaneko; Eiichi Banno; Katsumi Uesaka; Shigehiro Takasaka; Hidenori Iwai; Kazuya Ota; Haruhiko Kuwatsuka; Yoichi Oikawa; Takeshi Yagi; et al. (OFC, 2015)

Low-voltage silicon Mach-Zehnder modulator operating at high temperatures without thermo-electric cooling. - Kazuhiro Goi; Norihiro Ishikura; Hiroki Ishihara; Shinichi Sakamoto; Kensuke Ogawa; Tsung-Yang Liow; Xiaoguang Tu; Guo-Qiang Lo; Dim-Lee Kwong (OFC, 2016)

Foreword. - Kensuke Ogawa (IEICE Trans. Electron., 2018)

Integrated Optical Modulators on Silicon-Photonics Platform. - Kensuke Ogawa (OECC/PSC, 2019)

Machine-learning-enhanced quantum sensors for accurate magnetic field imaging. - Moeta Tsukamoto; Shuji Ito; Kensuke Ogawa; Yuto Ashida; Kento Sasaki; Kensuke Kobayashi (CoRR, 2022)