Flexible Architectures for Optical Transport Nodes and Networks and ROADM Design for Mesh Optical Networks with Colorless and Directionless Specification

The network today are equipped regarding flexibility and scalability using colorless and directionless architecture of ROADM and this causes handling unpredictable demand in high bandwidth, and also supplies one to one connection and provides new services without disrupting the desired routes. In this article, using PXC and WSS at a multi-degree node, we detect C & D ROADM architectures and then examine both architectures based on their advantages. We will also discuss some of their problems. Then a kind of colorless, directionless and inimitable (CD & C) architecture is proposed that combines properties of the C & D architectures; and considered architecture is implemented practically. Flexibility in support of network topologies, dynamic capacity allocation automated network control, and making optical path are key components of next-generation optical transport networks. To realize this potentials, the Multiplexes ·optical remove/add with the ability to reconfigure having dynamic remove/add structures, which are within the control surfaces, and specifying the path of light are required. Architectures and different applications of ROADM including remove / add colorless, directionless, and inimitable structures are determined in this particular article .the effect of scaling data transfer rates beyond 100 gigabytes per second on architectures ROADM, has been studied. Using the GMPLS control and optical measurement methods for light paths, restoration and automated supply are explained.