Transcription of ADVANCES IN ROADM TECHNOLOGIES AND …
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ADVANCES IN ROADM TECHNOLOGIES AND subsystems September, 2010 2 | Page ABSTRACT Unti l recentl y, reconfigurable opti cal add/drop multi plexer ( ROADM ) systems did not exist, their components were unselected, and their market was unclear. Today, every major system vendor has a ROADM offering, and a la rge number of component vendors have announced ROADM products based on a variety of TECHNOLOGIES , some more mature than others. We review the different opti cal component TECHNOLOGIES that have been developed for use in ROADM subsystems , and describe their principles of operation, designs, advanta ges, and challenges. The technology platforms that we cover include MEMS, li quid crystals (li quid crysta l devices (LCD) and li quid crysta l on sili con (LCoS) TECHNOLOGIES ), and monolit hic and hybrid pla nar li ghtwave circuit s (PLC) based on sili ca on sili con and polymer on sili con platforms.
www.enablence.com September, 2010 ADVANCES IN ROADM TECHNOLOGIES AND SUBSYSTEMS
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