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)

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)