北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1998, Vol. 21 ›› Issue (4): 17-20.

• 学术论文 • 上一篇    下一篇

非线性光学环路镜OTDM解复用器的性能分析

史寒星, 林金桐   

  1. 北京邮电大学电信工程学院, 北京 100876
  • 收稿日期:1997-10-31 出版日期:1998-09-10
  • 基金资助:
    国家“863计划”资助项目(863-317-9602-03-2)

Performance Analysis of the Nonlinear Optical Loop Mirror#br# as the Demultiplexer of OTDM System

Shi Hanxing ,Lin Jintong   

  1. School of Telecommunication Engineering, Beijing University ofPosts and Telecommunications, Beijing 100876
  • Received:1997-10-31 Online:1998-09-10
  • Supported by:
     

摘要: 简述了非线性光学环路镜(NOLM)作为全光时分复用系统解复用器件的工作原理, 通过解非线性薛定鄂方程进行了数值分析; 进一步讨论了群速度色散对解复用结果的影响, 并分析了NOLM开关窗口.结果表明, 在实际操作中, 必须根据接收信号及时钟脉冲的各项参数, 对NOLM光纤的群速度色散与脉冲间走离予以限制.

关键词: 光纤通信, 解复用, 交叉相位调制

Abstract: Briefly introduced and numerically analyzed is the working theory of the nonlinear optical loop mirror(NOLM) as the demultiplexer ofthe all optical time-division multiplexing(OTDM) system by solving the nonlinear schrodinger equations. Further discussed is the effect of the group velocitydispersion(GVD) on its demultiplexing results as well as the NOLM switch window.Proved is that, in practise, both the GVD parament of the fiber loop and the walkoff between two pulses must be restricted according to the conditions of boththe received signal and control pulses.

Key words: optical fiber communication, demultiplexing, cross-phase modulation

中图分类号: