With the tremendous increase in user demand for seamless broadband connectivity there is a requirement of alternatives to conventional optical networks. Due to the widespread use of Internet by a large population, there is a remarkable increase in traffic demanding a sharp increase in the capacity of the networks. Upcoming networks would be having high speed and covering long distance. Potential solutions have to be effective in bandwidth utilisation as well as reusing the bandwidth. One of the major challenges in today’s network is the division of fiber bandwidth between the users. Many wavelength division multiplexing architectures are used to utilize the wavelength for data transmission.