中国物理B ›› 2006, Vol. 15 ›› Issue (10): 2306-2314.doi: 10.1088/1009-1963/15/10/019

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Soliton-like pulse timing jitter in dispersion-managed systems

林理彬1, 李庆山2, 李齐良3   

  1. (1)Institute of Physics, Sichuan University, Chengdu 610064, China; (2)School of Communication, Hangzhou Dianzi University, Hangzhou 310018, China; (3)School of Communication, Hangzhou Dianzi University, Hangzhou 310018, China;Institute of Physics, Sichuan University, Chengdu 610064, China
  • 收稿日期:2006-04-07 修回日期:2006-04-26 出版日期:2006-10-20 发布日期:2006-10-20

Soliton-like pulse timing jitter in dispersion-managed systems

Li Qi-Liang(李齐良)a)b)†, Li Qing-Shan(李庆山)a), and Lin Li-Bin(林理彬)b)   

  1. a School of Communication, Hangzhou Dianzi University, Hangzhou 310018, China; b Institute of Physics, Sichuan University, Chengdu 610064, China
  • Received:2006-04-07 Revised:2006-04-26 Online:2006-10-20 Published:2006-10-20

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摘要： In this paper, the timing jitter in dispersion-managed soliton-like systems with the Gaussian pulse is studied by using two methods. Firstly, the derivation of the dynamic equations for the evolution of soliton-like parameters and the timing jitter expressions for the dispersion-managed soliton-like systems are carried out by the perturbed variational method. By analysing and simulating these timing jitter expressions, one can find that the timing jitter is induced by the amplified spontaneous emission noise and the frequency shift, etc. Nonlinear gain can suppress the timing jitter. The chirp sign and the filters action have also effects on the total timing jitter. Secondly, the timing jitter is calculated and analysed by using the moment method. The results of the two methods prove to be consistent with each other.

关键词: timing jitter, variational analysis, dispersion-managed soliton

Abstract: In this paper, the timing jitter in dispersion-managed soliton-like systems with the Gaussian pulse is studied by using two methods. Firstly, the derivation of the dynamic equations for the evolution of soliton-like parameters and the timing jitter expressions for the dispersion-managed soliton-like systems are carried out by the perturbed variational method. By analysing and simulating these timing jitter expressions, one can find that the timing jitter is induced by the amplified spontaneous emission noise and the frequency shift, etc. Nonlinear gain can suppress the timing jitter. The chirp sign and the filters action have also effects on the total timing jitter. Secondly, the timing jitter is calculated and analysed by using the moment method. The results of the two methods prove to be consistent with each other.

Key words: timing jitter, variational analysis, dispersion-managed soliton

中图分类号:  (Propagation, scattering, and losses; solitons)

  • 42.81.Dp
02.30.Xx (Calculus of variations) 42.50.Nn (Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems) 42.65.Tg (Optical solitons; nonlinear guided waves)