Title :
Filter-shape dependence on attenuation mechanism in channelized dynamic spectral equalizers
Author :
Marom, Dan M. ; Sang-Hyun Oh
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
Summary form only given. Today´s optical networks require optical add-drop capability as well as broadcast-and-select topologies. Such capabilities are enabled with high-resolution, channelized dynamic spectral equalizers (DSE), which can attenuate each optical channel independently to an extinction exceeding 30 dB in a DWDM system. Several implementations of channelized DSE are based on a dispersive, free-space imaging configuration, projecting the light emerging from the input fiber via imaging lenses and a diffraction grating onto a pixelated device plane. The active pixelated device can be chosen from multiple technologies, however liquid crystal (LC) based modulators and micro-electro-mechanical system (MEMS) tilting micro-mirrors are the favored technologies.
Keywords :
electro-optical modulation; equalisers; liquid crystal devices; micromirrors; optical attenuators; optical communication equipment; optical fibre dispersion; optical fibre filters; MEMS tilting micro-mirrors; active pixelated device; attenuation mechanism; broadcast-and-select topologies; channelized dynamic spectral equalizers; diffraction grating; dispersive free-space imaging configuration; filter-shape dependence; imaging lenses; lightwave communication systems; liquid crystal based modulators; optical add-drop capability; pixelated device plane; Attenuation; Broadcasting; Equalizers; High-resolution imaging; Liquid crystal devices; Network topology; Optical attenuators; Optical fiber networks; Optical filters; Optical imaging;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1159356
