Propagation properties of super-Gaussian pulse under influence of quintic nonlinearity and high-order dispersion

Abstract

Abstract: Based on the modified nonlinear Schr?dinger equation, derived the evolution equations for the parameters of super-gaussian pulse with different factor of sharpness under the influence of dispersion(high-order and the second-order) and nonlinearity(the third-order and the quintic) by using variational method，calculated the evolution equations by using Runge-kutta algorithm. The numerical results indicate that when the coefficients of dispersion and nonlinearity are small there are always coefficients of the third-order and the quintic nonlinearity that can compensate the influence of Broadening on Super-Gaussian pulse caused by the second-order and high-order dispersion effectively, in this case, the super-gaussian pulse can transmit conformally. When the ratio of dispersion and nonlinearity is too big the pulse is broaden infinitely.

Key words: guided wave and fiber optics, effective compensation, high-order dispersion, quintic nonlinearity, variational method, Runge-kutta algorithm

CLC Number:

TN929.11

WANG Yong-xiang，YU Zhi-he，Yi Miao，XIAO Ping-Ping. Propagation properties of super-Gaussian pulse under influence of quintic nonlinearity and high-order dispersion[J]. J4, 2013, 30(5): 635-640.

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