中国物理B ›› 2005, Vol. 14 ›› Issue (5): 969-973.doi: 10.1088/1009-1963/14/5/019

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Composite second-order performance improvement in optical fibre CATV transmission system using chirped fibre grating

叶青, 刘峰, 蔡海文, 瞿荣辉, 方祖捷   

  1. Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2004-09-21 修回日期:2005-01-10 出版日期:2005-05-19 发布日期:2005-05-19
  • 基金资助:
    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.

Composite second-order performance improvement in optical fibre CATV transmission system using chirped fibre grating

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)   

  1. Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2004-09-21 Revised:2005-01-10 Online:2005-05-19 Published:2005-05-19
  • Supported by:
    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.

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摘要： 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.

关键词: Composite second order, Chirped fiber grating, Optical fiber CATV transmission system

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.

Key words: composite second order, CFG, optical fiber CATV transmission system

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  • 4230Q