Open AccessDemonstration of channelized tunable optical dispersion compensator based on arrayed-waveguide grating and liquid crystal on silicon
Author(s) -
Kazunori Seno,
Kenya Suzuki,
Naoki Ooba,
Kazuhiro Watanabe,
M. Ishii,
Hirotaka Ono,
S. Mino
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.018565
Subject(s) - liquid crystal on silicon , materials science , optics , channel spacing , dispersion (optics) , wavelength division multiplexing , grating , bandwidth (computing) , waveguide , optoelectronics , liquid crystal , computer science , telecommunications , physics , wavelength
We propose and demonstrate a multi-channel tunable optical dispersion compensator (TODC) that consists of an arrayed-waveguide grating (AWG) and liquid crystal on silicon (LCOS). By utilizing the AWG with a large angular dispersion and the LCOS with a flexible phase setting, we can construct a compact and flexible TODC that has a wide tuning range of chromatic dispersion. We confirmed experimentally that the TODC could realize channel-by-channel CD compensation for six WDM channels with a ± 800 ps/nm range and a 3 dB bandwidth of 24 GHz. We believe that the multi-channel operation of this TODC will help to reduce the cost and power consumption of high-speed optical transmission systems.