Performance analysis of optical network based on OADM by using different filters

This paper present an investigation into the effect on the performance of an optical network based on OADM by changing different filters at the receiver side. We calculate the average BER and with the help of eye diagrams, analyze the response of the filter and compare the results with ideal filter in OADM based environment. With the help of OADM we can use the network resources efficiently and provide protection to network and routing features for add and drop channel. For this we design a OADM based ring network of four nodes transmitting at 10 Gbps connected with four unidirectional non linear single mode fiber span of 10 Km.