The phase compensator for laser linewidth of 100Gb/s PDM-CO-OFDM system

Abstract

We present the pilot-aided phase compensator (PC) at receiver to compensate phase drift due to laser linewidth for 100Gb/s polarization division multiplexing coherent optical OFDM (PDM-CO-OFDM) system. Simulating results are shown that PC is very effective and the improvement of Q is >5dB for 800km link with 100kHz-linewidth.