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物理学报. 2004, 53(6): 1826-1830.
doi: 10.7498/aps.53.1826.
飞秒光脉冲在光子晶体光纤中的非线性传输和超连续谱产生
- 收稿日期: 2003-08-04
- 修回日期: 2003-10-14
- 刊出日期: 2004-06-15
English Abstract
Nonlinear propagation and supercontinuum generation of a femtosecond pulse in photonic crystal fibers
- Received Date:
04 August 2003
- Accepted Date:
14 October 2003
- Published Online:
15 June 2004
Abstract: A theoretical investigation with the method of split-step Fourier is presented on the nonlinear propagation and supercontinuum generation of a femtosecond laser pulse in a photonic crystal fiber. The impact of high-order dispersion and nonlinear effects on spectral shape and band width is simulated and analyzed. It is found that soliton self-frequency shift is generated in a photonic crystal fiber. It is also found that intrapulse stimulated Raman scattering and self-phase modulation result in the fine spectral substructure of the supercontinnum. The band width and smoothing of the supercontinuum are found to be related to the higher-order dispersion and the power of the initial laser pulse.
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