相位噪声补偿新技术
New technologies for phase noise compensation
相干检测 相位噪声 载波同步 前馈 反向传播 coherent detection phase noise carrier synchronization feedforward backpropagation
摘要
文章介绍了两种补偿相位噪声的新技术，分别是补偿激光器相位噪声的数字前馈载波恢复算法和补偿非线性相位噪声的数字反向传播算法。其中数字前馈载波恢复算法能有效地提高能够容忍的激光器线宽；数字反向传播算法减少了非线性噪声，并能够大幅提高发射功率，以提高信噪比。
Abstract
Two new technologies for phase noise compensation introduced in this paper are digital feedforward carrier recovery for laser phase noise compensation and digital backpropagation for nonlinear phase noise compensation. The former can effectively improve the tolerable laser linewidth, while the latter reduces nonlinear phase noise and enhances transmission power by a large margin so as to improve the signal-to-noise ratio.
张自然, 黄博, 张俊文, 朱江波, 邵宇丰, 黄德修, 迟楠. 相位噪声补偿新技术[J]. 光通信研究, 2011, 37(1): 12. Zhang Ziran, Huang Bo, Zhang Junwen, Zhu Jiangbo, Shao Yufeng, Huang Dexiu, Chi Nan. New technologies for phase noise compensation[J]. Study On Optical Communications, 2011, 37(1): 12.
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