Performance Analysis of AC-Coupled Burst-Mode Receiver for Fiber-Optic Burst-Switching Networks

Performance Analysis of AC-Coupled Burst-Mode Receiver for Fiber-Optic Burst-Switching Networks A generalized theoretical analysis of an AC-coupled burst-mode receiver is presented. This receiver is designed to operate in optical burst-switching networks using DC-balanced data coding such as 8B10B. Analytic expressions for the recovery time are derived as a function of the system dynamic range, power penalty, and data-coding format. The theoretical calculations are verified with a detailed simulation. It is shown that locking time of the order of nanoseconds can be achieved with commercially available AC-coupled receivers. The burst-mode receiver can adapt to large ( dB) amplitude variations in 30 ns with a power penalty of 2 dB at 12.5 Gb/s. An overall optimization of the transmitter-receiver link-setup time is performed for an optical burst-switching network based on tunable laser transmitters. The dark interval during laser tuning ( ns) is shown to have a beneficial impact on the receiver\´s response time, effectively reducing its locking time to a few nanoseconds, thus resulting in an overall link setup time of about 50 ns, limited by the laser\´s tuning time.