Performance Analysis of a Photonic Switch Architecture Supporting Variable Length Packets

We consider a photonic switch based on a broadcast WDM architecture with tunable transmitters and fixed frequency receivers. The switch supports variable length packets which are internally segmented and reassembled. The switch operates under a schedule that masks the transceiver tuning latency. We analyze approximately a queueing model of the switch in order to obtain the queue-length distribution and loss probabilities at the input and output ports. Numerical results for loss probabilities are presented and compared against simulation results.