Soliton-like pulse timing jitter in dispersion-managed systems |
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Authors: | Li Qi-Liang Li Qing-Shan and Lin Li-Bin |
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Institution: | School of Communication, Hangzhou Dianzi University, Hangzhou 310018, China; Institute of Physics, Sichuan University, Chengdu 610064, China |
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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. |
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Keywords: | timing jitter variational
analysis dispersion-managed soliton |
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