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Effect of Chirp in Optical Soliton Transmission with Lumped Amplifiers

Li Hong Huang Zhaoming (Department of Electronic Engineering, Shanghai University, Shanghai 201800)  
The relation between the chirp in phase of soliton pulse and soliton propagation is discussed in this paper. It is shown with numberical results that the chirp always changes sign whenever soliton pulse alternates between narrowing and broadening. The critical length of soliton propagation (with which the lumped amplifiers are separated) can be determined by means of the chirp, and the effect from this method is better than that from pulse width recovery scheme.
【Fund】: 国家自然科学基金
【CateGory Index】: TN722.32
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