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What is WSS | Wavelength Selective Switch in Fiber Optics

This page explains basics of WSS used in fiber optical domain. The full form of WSS is Wavelength Selective Switch.

It is optical device. This circuit pack does following functions :

• Wavelength Switching

• Optical Power Control for ROADM (Reconfigurable Optical Add Drop MUX)

• Optical Power Control for Wavelength Switch Nodes.

Refer ROADM➤ for more information.


Wavelength Selective Switch-WSS ROADM

Figure depicts WSS of degree-4 node type. For mesh connectivity, 1 x 5 WSS with degree-4 node is used. It supports ring to ring interconnection.

Three numbers of WSS are required for each degree to support mesh connectivity feature as well as colorless ADD/Drop ports.

Fiber Optic Network and Optical Components Related Links

DWDM system basics   Fibre optic communication   What is PDMA?   What is WDM?  SONET SDH tutorial   SDH Networks   SDH Frame structure   SDH Modulation   PDH Frame structure   Optical Components  Optical Isolator   Optical Circulator   Optical Amplifier   Optical Filter   Optical Coupler   Optical MUX DEMUX   Optical Equalizer   Optical Switch   Wavelength converter  

What is Difference between

PDH vs SDH  SONET versus SDH   CAS vs CCS  Types of WDM   Single vs multimode fiber  

RF and Wireless Terminologies


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