Adaptive split-step Fourier method for simulating ultrashort laser pulse propagation in photonic crystal fibres

doi:10.1088/1009-1963/15/2/034

Abstract

Abstract In this paper, the generalized nonlinear Schr?dinger equation (GNLSE) is solved by an adaptive split-step Fourier method (ASSFM). It is found that ASSFM must be used to solve GNLSE to ensure precision when the soliton self-frequency shift is remarkable and the photonic crystal fibre (PCF) parameters vary with the frequency considerably. The precision of numerical simulation by using ASSFM is higher than that by using split-step Fourier method in the process of laser pulse propagation in PCFs due to the fact that the variation of fibre parameters with the peak frequency in the pulse spectrum can be taken into account fully.

Keywords: photonic crystal fibre ultrashort laser pulse propagation adaptive split-step Fourier method

Received: 10 June 2005
Revised: 08 November 2005
Accepted manuscript online:

PACS:	42.70.Qs	(Photonic bandgap materials)
	42.65.Re	(Ultrafast processes; optical pulse generation and pulse compression)
	42.65.Tg	(Optical solitons; nonlinear guided waves)
	42.55.Wd	(Fiber lasers)
	78.30.-j	(Infrared and Raman spectra)
	02.30.Nw	(Fourier analysis)

Fund: Project supported by the State Key Development Program for Basic Research of China (Grant No 2003CB314905),the National High Technology Development Program of China (Grant No 2003AA311011) and Postdoctoral Workstation Research Program of Gulf Security Technology Co. Ltd.

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Li Shu-Guang (李曙光), Xing Guang-Long (邢光龙), Zhou Gui-Yao (周桂耀), Han Ying (韩颖), Hou Lan-Tian (侯蓝田), Hu Ming-Lie (胡明列), Li Yan-Feng (栗岩锋), Wang Qing-Yue (王清月) Adaptive split-step Fourier method for simulating ultrashort laser pulse propagation in photonic crystal fibres 2006 Chinese Physics 15 437

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Adaptive split-step Fourier method for simulating ultrashort laser pulse propagation in photonic crystal fibres

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