光转换单元中锁相环带宽的优化

袁建国; 李好; 何清萍

doi:10.3788/OPE.20111908.1937

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光转换单元中锁相环带宽的优化

信息科学 | 更新时间：2020-08-12

- 光转换单元中锁相环带宽的优化
- Optimization of bandwidth for phase-locked loop in OTU
- 光学精密工程 2011年19卷第8期页码：1937-1943
- 作者机构：
  
  重庆邮电大学光纤通信技术重点实验室重庆,400065
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.61071117();No.61003256)();重庆市自然科学基金资助项目(No.2010BB2409)();重庆市教委科学技术研究
- DOI：10.3788/OPE.20111908.1937
  中图分类号： TN929.53
- 收稿日期：2010-12-13，
  
  修回日期：2011-02-15，
  
  网络出版日期：2011-08-25，
  
  纸质出版日期：2011-08-25
- 稿件说明：
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袁建国, 李好, 何清萍. 光转换单元中锁相环带宽的优化[J]. 光学精密工程, 2011,19(8): 1937-1943

YUAN Jian-guo, LI Hao, He Qing-ping. Optimization of bandwidth for phase-locked loop in OTU[J]. Editorial Office of Optics and Precision Engineering, 2011,19(8): 1937-1943
袁建国, 李好, 何清萍. 光转换单元中锁相环带宽的优化[J]. 光学精密工程, 2011,19(8): 1937-1943 DOI： 10.3788/OPE.20111908.1937.

YUAN Jian-guo, LI Hao, He Qing-ping. Optimization of bandwidth for phase-locked loop in OTU[J]. Editorial Office of Optics and Precision Engineering, 2011,19(8): 1937-1943 DOI： 10.3788/OPE.20111908.1937.

摘要

考虑光转换单元(OTU)中锁相环带宽同时受外部输入抖动和内部相位噪声抖动的影响

为克服锁相环带宽选择的矛盾性

本文对其带宽进行了优化设计。在同时考虑外部输入抖动和内部相位噪声的情况下

对锁相环带宽算法进行综合分析。通过改进前人的计算和分析方法推导得出OTU中锁相环带宽的优化算法

分析并得到锁相环路的优化带宽

使OTU的时钟输出有较低的抖动噪声。将优化算法应用到2.5 Gbit/s和10 Gbit/s的OTU中

对环路参数进行定量和定性分析

获得了锁相环的优化参数和再生器输出抖动值。实验研究表明

该优化算法具有一定优越性与可行性

比较适用于OTU。

Abstract

As both the external input jitter and the internal phase noise jitter impact on the bandwidth of Phase-Locked Loop(PLL) in an Optical Transponder Unit(OTU)

the bandwidth of the PLL was designed optimally to solve the contradiction of the wavelength selection. With consideration of the external input jitter and the internal phase noise

the bandwidth algorithm of the PLL was comprehensively analyzed

and an optimization algorithm of the bandwidth for PLL in the OTU was deduced through improving calculation and analytical methods from formers. The optimal bandwidth of the PLL can ensure the lower jitter noise of clock output in the OUT. The optimization algorithm was applied in the OTUs with 2.5 Gbit/s and 10 Gbit/s

respectively to analyze the loop parameters and the optimal parameters of the PLL and the output jitter value of a regenerator were acquired quantitatively and qualitatively. The experiment shows that the optimization algorithm is superior to traditional algorithms and more suitable for OTUs.

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Keywords

references

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