Wavelength selective switching
- Wavelength selective switching
Wavelength Selective Switching components are industrial packages integrating devices for wavelength multiplexing/demultiplexing of WDM signals and mechanisms to switch signals on a per-wavelength basis. Multiplexing/demultiplexing elements can be realized as array waveguide gratings (AWG).Currently, the typical switching technology uses microelectromechanical systems (MEMS), but liquid crystals (LCoS) are also used.
A WSS component is characterized by the number of WDM channels (e.g., 40 or 80) and by the number of selectable directions (e.g., 1x5 or 1x9).The main application of WSSs is the implementation of reconfigurable optical ADMs (ROADM), or, in full mesh arrangements, of optical cross-connect systems.
External links
* [http://www.jdsu.com/products/optical-communications/products/roadm-add-drop-modules/roadms.html JDSU Reconfigurable Optical Add/Drop Multiplexers (ROADMs)]
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