Terminology » Fiber Optic » PLC ROADM: Planar Lightwave Circuit ROADM Explained

PLC ROADM: Planar Lightwave Circuit ROADM Explained

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This page explains the basics of PLC ROADM, a key technology used in fiber optic networks.

The full form of PLC ROADM is Planar Lightwave Circuit ROADM.

Planar Lightwave Circuit-PLC ROADM

The figure above depicts the architecture of a PLC ROADM based Degree-2 node.

Following are the features of PLC type of ROADM:

  • It consists of a pair of modules, one ‘Add module’ and one ‘Drop module’. Hence, there are 2 ADD and 2 DROP modules.
  • Uses 40 C band channels with 100 GHz spacing.
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