Design of 1.25 Gb/s Optical Burst Mode Receiver

In this paper, a novel DC coupled feedforward type optical burst mode receiver is presented.Through the cooperation between the fast peak detector and the delay unit,the receiver is realized with lower BER, bettter receiver sensitivity and receiver dynamic range. The output NOR gate can cancell the unwanted peak in dead spaces between packet signals.The results of the simulation indicate that the receiver sensitivity is -24 dBm (average power, 10-9BER) at bit rates up to 1.25 Gb/s and the maximum receivable optical average power is -4 dBm, so the dynamic range is 20 dB. The minimum packet spacing required to properly recover the first bit in the second packet is 20 ns.