Title :
Effect of mirror curvature in MEMS micro-mirror based wavelength-selective switches
Author :
Marom, Dan M. ; Neilson, David T. ; Ryf, Roland ; Shea, Herbert R.
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
The effect of mirror curvature has been studied for its influences on the operation of the wavelength-selective switches. Expressions for the curvature-induced losses and path length differences are developed. The study shows that curvature gives rise to a fixed dispersion, which matches experimental observations. In addition, it is demonstrated that mirror curvature is responsible for passband tilt in the attenuated state with DD tilt mirrors. Finally, mirror curvature can be used advantageously to create a channelized dispersion compensator.
Keywords :
micromechanical devices; micromirrors; optical dispersion; optical losses; optical switches; wavelength division multiplexing; MEMS micromirror; attenuated state; channelized dispersion compensator; curvature-induced losses; mirror curvature; passband tilt; path length differences; wavelength-selective switches; Communication switching; Gratings; Lenses; Micromechanical devices; Mirrors; Optical attenuators; Optical devices; Optical distortion; Optical network units; Optical switches;
Conference_Titel :
Lasers and Electro-Optics Society, 2003. LEOS 2003. The 16th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7888-1
DOI :
10.1109/LEOS.2003.1251759
