Fiber chromatic dispersion and polarization-mode dispersion monitoring using coherent detection

被引：30
|
作者：
Fu, B [1 ]
Hui, RQ [1 ]
机构：
[1] Univ Kansas, Dept Elect Engn & Comp Sci, Lawrence, KS 66045 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 07期
基金：
美国国家科学基金会;
关键词：
chromatic dispersion monitoring; coherent detection; heterodyne; optical communication; polarization-mode dispersion (PMD) monitoring; radio-frequency (RF) signal processing;
D O I：
10.1109/LPT.2005.849984
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose and experimentally demonstrate a nondestructive method to monitor chromatic dispersion (CD) and polarization-mode dispersion (PMD) in traffic-carrying wavelength-division-multiplexing optical systems. Coherent heterodyne detection is used to down convert the spectrum of digitally modulated signal from optical domain into radio-frequency (RF) domain. By analyzing group delay difference and polarization walkoff between different frequency components through proper RF signal processing, both CD and PMD can be precisely determined. Good agreement between experimental results and theoretical values has been obtained.
引用
收藏
页码：1561 / 1563
页数：3
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