OSNR Analysis on Optical Cross Add and Drop Multiplexer (OXADM) in Ring Metropolitan (CWDM) Network: The Analytical Approach

The optical device model named Optical Cross Add and Drop Multiplexer (OXADM) uses the combined con- cepts of optical add/drop multiplexing and optical cross connect between two main transmission lines in order to implement the wavelength routing operation. The device can operate in point-to-point, ring or mesh network topology. In a ring metropolitan network, the OXADMs are located in the nodes, which provide functionalities such as transport, multiplexing, routing, supervision and survivability of client signals processed predominantly in optical domain. The objective of this paper is to analyze the OSNR for OXADM ring network with assumptions to determine the connections between each component in the network and the OSNR using Matlab. The analysis results can help in determining a better configuration of OXADM devices in a ring metropolitan network.