Abstract
A compact and monolithic four-channel demultiplexer with 20-nm spacing was fabricated by use of a high-spatial-frequency transmission grating buried in a silica waveguide. The grating was successfully buried in a silica slab waveguide by overcladding by plasma-enhanced chemical-vapor deposition. The device’s size was approximately . The average insertion loss was 13 dB. The average cross talk was for adjacent channels and for nonadjacent channels. The polarization-dependent loss was estimated to be as low as 0.7 dB.
© 2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Kazuaki Oya, Tatsuhiro Nakazawa, Shigeo Kittaka, Keiji Tsunetomo, Kenji Kintaka, Junji Nishii, and Kazuyuki Hirao
Opt. Lett. 30(2) 192-194 (2005)
Guoyan Zeng, Yuexin Yin, Yingzhi Ding, Junfeng Yang, Jun Yan, Xiaoqiang Sun, and Daming Zhang
Opt. Express 31(13) 21161-21171 (2023)
Edgar Pawlowski, Margit Ferstl, Heik Hellmich, Berndt Kuhlow, Carsten Warmuth, and José R. Salgueiro
Appl. Opt. 38(14) 3039-3045 (1999)