Analysis of an optical hybrid switch

This paper provides new loss models for an OCS/OBS optical hybrid switch. Exact results for the blocking probability based on an analysis of a 3-dimension state-space Markov chain is derived when circuits are given preemptive priority over bursts and are allowed to wait a certain amount of time if all wavelengths are busy in the desired output link. Because it is difficult to exactly compute the blocking probability in realistic scenarios, we derive a computationally scalable approximation for the blocking probability reducing the 3-dimension state space into a single dimension. © 2006 IEEE.