R. Ishikawa

Spectral chirping suppression by compensating current in modified DFB-DC-PBH LDs

Ikuo Mito, Kohroh Kobayashi, K. Kaede, 1985 .

A coupling device and optical branching

R. Ishikawa, Shigetoki Sugimoto, Shigeo Matsushita, 1977 .

High-performance automatic polarization control system for optical FSK heterodyne transmission

Katsumi Emura, Ikuo Mito, Minoru Shikada, 1986 .

Stabilisation of heterodyne receiver sensitivity with automatic polarisation control system

Katsumi Emura, Ikuo Mito, Minoru Shikada, 1986 .

Kaleidoscope micro-optic star coupler

H. Nishimoto, K. Kaede, R. Ishikawa, 1980 .

Low-drive-voltage and low-loss polarisation-independent LiNbO3 optical waveguide switches

M. Kondo, Y. Ohta, R. Ishikawa, 1987 .

20-channel micro-optic grating demultiplexer for 1.1-1.6 μm band using a small focusing parameter graded-index rod lens

Kohroh Kobayashi, M. Seki, Minoru Shikada, 1982 .