Optimization of optical switches in ROADM with different operating conditions

Reconfigurable Optical Add/Drop Multiplexers (ROADMs) are optical modules capable of adding/dropping or passing through any or all wavelengths present in DWDM signal with remote management capability. In performance of ROADMs, routing power 'R' which is a figure of merit has been used. The wavelength routing performance of ROADMs has been improved by inclusion of dynamic traffic under different traffic models like Bernoulli and Pascal models which depends on traffic peakedness 'Z'. The proposed model is valid for all existing ROADM architectures involved in practical networks and acts as a useful tool for cost-effective network designs. The routing performance is analyzed under different operating conditions of the system like traffic peakedness (Z), number of switches and wavelengths at different stages of the system. © 2012 IEEE.