112 gbit /s PDM-PAM4传输超过80 km SMF，采用数字相干检测，无光放大器

2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) Pub Date : 2016-07-20 DOI:10.1109/CSNDSP.2016.7573937

Xian Zhou, K. Zhong, Jiahao Huo, Yiguang Wang, Liang Wang, J. Tu, Yanfu Yang, Lei Gao, L. Zeng, Changyuan Yu, A. Lau, Chao Lu

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引用次数: 1

摘要

在这项工作中，我们实验证明了112 Gbit/s的偏振分复用(PDM)四电平脉冲幅度调制(PAM4)在80公里单模光纤(SMF)上的传输，使用数字相干检测，无需光放大器和CD补偿，用于短距离应用。为了避免载波频偏和相位噪声的影响，提出了一种信号相位辅助最小均方(SP-LMS)均衡算法。在没有附加载波恢复算法的情况下，PDM-PAM4系统具有良好的传输性能。与背靠背(BTB)传输相比，80公里传输后的接收光功率(ROP)损失仅为0.2 dB左右。在80公里传输后，接收器灵敏度可达到-20dBm (7% FEC限制)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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112-Gbit/s PDM-PAM4 transmission over 80-km SMF using digital coherent detection without optical amplifier

In this work, we experimentally demonstrated a 112 Gbit/s polarization-division-multiplexed (PDM) four-level pulse amplitude modulation (PAM4) transmission over 80-km single mode fiber (SMF) using digital coherent detection without optical amplifier and CD compensation for the short reach applications. Here, a signal-phase aided least-mean-square (SP-LMS) equalization algorithm is proposed to avoid the effects of carrier frequency offset and phase noise. Without additional carrier recovery algorithms, the PDM-PAM4 system shows good transmission performance. The received optical power (ROP) penalty is only about 0.2 dB after 80 km transmission comparing to back-to-back (BTB) transmission. A receiver sensitivity of -20dBm (at 7% FEC limit) can be reached after 80-km transmission.

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来源期刊

2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)

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