Comparison of the compensation effects of fiber nonlinear impairments with mid-span optical phase conjugation between PDM CO-OFDM system and PDM QPSK system

Xu Fei, Guo Meng-Qi, Wang Lei, Qiao Yao-Jun^†,, Tian Hui-Ping

Relationship between Q factor and the launch power into first fiber span after transmitting (a) 800 km (b) 1600 km when OSNR = 15 dB.