100 Gb/s PDM-DQPSK optical label switching system with spectral amplitude code labels

Abstract

In this paper, we present the performance analysis of 100 Gb/s polarization division multiplexed (PDM) differential quadrature phase shift keying (DQPSK) transmission system with spectral amplitude code (SAC) labels in computer simulation. In this system, the payload consists of two 25 Gbaud channels which are orthogonally polarized. Direct detection is selected to demodulate PDM payload in the receiver. Meanwhile, 4 bits of 156 Mb/s SAC label is frequency-swept coherently detected. After 96 km transmission, eye opening factor of the label is 0.81 for payload, optical signal-to-noise ratio (OSNR) is 11.6 dB while received optical power is -13.4 dBm.