Error probability analysis in PMD-supported dual-channel optical direct detection POlSK transmission systems

Abstract

An analytical model for evaluating the performances of PMD-supported dual-channel, direct-detection optical PolSK transmission systems with a simple-structure, pre-amplified receiver is presented. The BER in each channel and an average BER of the system are evaluated based on the calculations of the noise probability density functions by using the Karhunen-Loève expansion and moment generating function. The PMD effects in the fiber link are taken into account. Based on the proposed model, the calculated results for evaluating performances of the PolSK system are presented.