Compact silica arrayed-waveguide grating with small bend radius utilizing trenches filled with low-refractive index material. - Jiro Ito; Tom Yen-Ting Fan; Takanori Suzuki; Hiroyuki Tsuda (IEICE Electron. Express, 2006)

Integrated loop mirrors for catoptric functional waveguide devices. - Yuichiro Ikuma; Jiro Ito; Hiroyuki Tsuda (IEICE Electron. Express, 2008)

Compact Silica Arrayed-Waveguide Grating Using High-Mesa Small-Bend Waveguides. - Jiro Ito; Tom Yen-Ting Fan; Takanori Suzuki; Hiroyuki Tsuda (IEICE Trans. Electron., 2008)

An athermal delay interference circuit using trenches filled with low-refractive index material. - Kenji Iwamoto; Jiro Ito; Hiroyuki Tsuda (IEICE Electron. Express, 2009)

High-Speed Photonic Functional Circuits Using Electrically Controllable PLZT Waveguides. - Jiro Ito; Mitsuhiro Yasumoto; Keiichi Nashimoto; Hiroyuki Tsuda (IEICE Trans. Electron., 2009)