Abstract Theoretically, we analyze the dispersion compensation characteristics of the chirped fiber grating (CFG) in an optical fiber cable television (CATV) system and obtain the analytic expression of the composite second-order (CSO) distortion using the time-domain form of the field envelope wave equation. The obtained result is in good agreement with the numerical simulation result. Experimentally, we verify the result by making use of the tunable characteristics of CFG to change the dispersion compensation amount and obtain an optimal CSO performance in a 125-km fiber transmission link. Both the theoretical and experimental results show that the CSO performance can be improved by properly choosing the dispersion compensation amount for a certain fiber transmission link.
Received: 21 September 2004
Revised: 10 January 2005
Accepted manuscript online:
Fund: Supported by the State Key Development for Basic Research of China (Grant No 2001CCA04600), and the Knowledge Innovation Program of the Chinese Academy of Sciences, and the Science and Technology Development Fund of Shanghai Science Committee.
Cite this article:
Ye Qing (叶青), Liu Feng (刘峰), Cai Hai-Wen (蔡海文), Qu Rong-Hui (瞿荣辉), Fang Zu-Jie (方祖捷) Composite second-order performance improvement in optical fibre CATV transmission system using chirped fibre grating 2005 Chinese Physics 14 969
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