3阶色散对相位整形不归零码传输性能的影响

DONG Yi; ZHAO Shang-hong; NI Yan-hui; TIAN Xiao-fei; JIANG Fu-wei

doi:10.3969/j.issn.1001-3806.2012.02.026

为了研究3阶色散对相位整形不归零(phase-shaped nonreturn-to-zero,PSNRZ)码传输性能的影响,通过仿真对带有初始啁啾的高斯脉冲受3阶色散影响的情况进行了研究。研究发现,初始啁啾的存在会严重加剧3阶色散对波形演化的影响。而通过对PSNRZ码传输性能的仿真进一步发现,与3阶色散补偿后相比,未补偿时的传输距离受到很大限制,当链路残余色散低于20ps/nm时,最大传输距离减小超过500km。结果表明,当采用PSNRZ码通信时,必须对3阶色散进行补偿。

3阶色散对相位整形不归零码传输性能的影响

Corresponding author: ZHAO Shang-hong, zhaoshangh@yahoo.com;

1. Telecommunication Engineering Institute, Air Force Engineering University, Xi'an 710077, China

Received Date: 2011-07-21

Accepted Date: 2011-09-07

Available Online: 2012-03-25

Abstract: 为了研究3阶色散对相位整形不归零(phase-shaped nonreturn-to-zero,PSNRZ)码传输性能的影响,通过仿真对带有初始啁啾的高斯脉冲受3阶色散影响的情况进行了研究。研究发现,初始啁啾的存在会严重加剧3阶色散对波形演化的影响。而通过对PSNRZ码传输性能的仿真进一步发现,与3阶色散补偿后相比,未补偿时的传输距离受到很大限制,当链路残余色散低于20ps/nm时,最大传输距离减小超过500km。结果表明,当采用PSNRZ码通信时,必须对3阶色散进行补偿。

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3阶色散对相位整形不归零码传输性能的影响

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