Pan Yan, Yan Lianshan, Yi Anlin, Jiang Lin, Pan Wei, Luo Bin, Zou Xihua
Opt Lett. 2017 Oct 15;42(20):4071-4074. doi: 10.1364/OL.42.004071.
We propose a four-linear state of polarization multiplexed intensity modulation and direct detection (IM/DD) scheme based on two orthogonal polarization division multiplexing (PDM) on-off keying systems. We also experimentally demonstrate a simple demultiplexing algorithm for this scheme by utilizing only a single Stokes analyzer. At the rate of 4×10 Gbit/s, the experimental results show that the power penalty of the proposed scheme is about 1.5 dB, compared to the single PDM-IM/DD for back-to-back (B2B) transmission. Compared to B2B, just about 1.7 dB power penalty is required after 25 km Corning LEAF optical fiber transmission. Meanwhile, the performance of the polarization tracking is evaluated, and the results show that the BER fluctuation is less than 0.5 dB with a polarization scrambling rate up to 708.75 deg/s.
我们提出了一种基于两个正交偏振分复用（PDM）开关键控系统的四线性偏振复用强度调制与直接检测（IM/DD）方案。我们还通过仅使用单个斯托克斯分析仪，对该方案的一种简单解复用算法进行了实验演示。实验结果表明，在4×10 Gbit/s速率下，与背靠背（B2B）传输的单PDM-IM/DD相比，该方案的功率代价约为1.5 dB。与B2B相比，在25 km康宁LEAF光纤传输后，仅需约1.7 dB的功率代价。同时，对偏振跟踪性能进行了评估，结果表明，在偏振扰码速率高达708.75 deg/s时，误码率波动小于0.5 dB。
