Title :
MEMS-based channelized dispersion compensator with flat passbands
Author :
Neilson, David T. ; Ryf, Roland ; Pardo, Flavio ; Aksyuk, Vladimir A. ; Simon, Maria-Elina ; Lopez, Daniel O. ; Marom, Dan M. ; Chandrasekhar, S.
Author_Institution :
Bell Labs., Holmdel, NJ, USA
Abstract :
This paper describes a continuously variable and independently addressable channelized dispersion compensator. The optical system is a free-space grating-based system used in a four-pass configuration to ensure flat passbands. The variable dispersion is produced by an array of thermally adaptable curvature micromechanical mirrors. A per-channel variable dispersion greater than +/-400 ps/nm has been demonstrated, with 58 GHz +/-0.4 dB flat passband on 85 GHz spacing. The group delay ripple is less than 7 ps and the penalty with 40 Gb/s CSRZ is 0.7 dB.
Keywords :
compensation; diffraction gratings; micromechanical devices; micromirrors; optical arrays; optical design techniques; optical fibre dispersion; 40 Gbit/s; MEMS-based dispersion compensator; channelized dispersion compensator; flat passbands; four-pass configuration; free-space grating-based system; group delay ripple; microelectromechanical systems; micromechanical mirror array; Arrayed waveguide gratings; Microelectromechanical systems; Micromechanical devices; Mirrors; Optical filters; Optical interferometry; Optical ring resonators; Optical waveguides; Passband; Propagation delay;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.822835
