What is WR and why we use it in Optical Transmission networks?

WR stands for Wavelength Router.

It’s used to forward traffic on wavelength.

It’s called optical add drop multiplexer.

It can perform 3 functions:

  • add
  • drop
  • pass through

It contain what’s called WSS.

WSS is wavelength selective switch.

The WSS has the ability to add or drop any channel / wavelength from/ to any port in the WR.

Also it has the ability to attenuate any channel power to performance power adjustment and commissioning.

Credits: :point_down:

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