GaInAsP/InP long-wavelength lasers with strain-compensated quantum-wire active regions and SiO2/semiconductor reflectors. - Hideki Yagi; Takuya Sano; Koji Miura; Dhanorm Plumwongrot; Kazuya Ohira; Takeo Maruyama; Shigehisa Arai (IEICE Electron. Express, 2004)

GaInAsP/InP distributed reflector laser with phase-shifted DFB and quantum-wire DBR sections. - Kazuya Ohira; Tomonori Murayama; Saeed Mahmud Ullah; Hideki Yagi; Shigehisa Arai (IEICE Electron. Express, 2005)

Aggregate-Compression-Aided Subcarrier IQ Index Modulation. - Kazuya Ohira; Takanori Hara; Koji Ishibashi (WPNC, 2018)