Title :
50-Wavelength Channel-by-Channel Tunable Optical Dispersion Compensator Using a Combination of AWG and Bulk Grating
Author :
Seno, Kazunori ; Suzuki, Kenya ; Ooba, Naoki ; Watanabe, Toshio ; Itoh, Masayuki ; Mino, Sinji ; Sakamoto, Tadashi
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We propose a novel optical configuration for a multichannel tunable optical dispersion compensator (TODC) with channel-by-channel operation across the entire L-band. The TODC consists of a cyclic frequency arrayed-waveguide grating whose free spectral range coincides with the channel spacing, a bulk grating, and a liquid crystal on silicon. We achieved channel-by-channel compensation over 50 channels with a maximum chromatic dispersion of ±800 ps/nm.
Keywords :
diffraction gratings; liquid crystal devices; multiplexing equipment; optical communication equipment; optical dispersion; silicon; L-band; bulk grating; channel-by-channel tunable optical dispersion compensator; cyclic frequency arrayed waveguide grating; liquid crystal on silicon; multichannel tunable optical dispersion compensator; Arrayed waveguide gratings; Delay; Dispersion; Focusing; Gratings; Lenses; Liquid crystal on silicon; Arrayed-waveguide grating (AWG); chromatic dispersion (CD) compensator; liquid crystal on silicon; optical planar waveguide components; tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2078494
