Split pump region in 1.55 μm InGaAsP/InGaAsP asymmetric active multi-mode interferometer laser diode for improved modulation bandwidth. - Mohammad Nasir Uddin; Takaaki Kizu; Yasuhiro Hinokuma; Kazuhiro Tanabe; Akio Tajima; Kazutoshi Kato; Kiichi Hamamoto (IEICE Trans. Electron., 2014)

Low wavelength dependency design for MMI (multi-mode interference) mode converter. - Yutaka Chaen; Kazuhiro Tanabe; Haisong Jiang; Kiichi Hamamoto (IEICE Electron. Express, 2015)