Study on chirps induced by the high-order nonlinear effects in the negative refractive media

Abstract

Abstract:

Based on the generalized nonlinear equation of negative refractive media, the self-phase modulation chirp, self-steepening chirp, fake-quintic nonlinearity chirp , second-order nonlinear dispersion chirp and total chirps induced by all nonlinear effects are simulated by using the Split-step Fourier method . The results shown that the center of the pulse can shift both the leading edge and the trailing edge because the parameter of self-steepening can be negative and positive . in normal dispersion area , the fake-quintic nonlinearity leads to the broadening of pulse if the parameter of fake- quintic nonlinearity is negative, the second-order nonlinear dispersion leads to the broadening of pulse if the parameter of second-order nonlinear dispersion is positive and the compression of pulse if the parameter is negative.

Key words: nonlinear optics, chirp, the Split-step Fourier method, negative refractive media, second-order nonlinear dispersion

CLC Number:

O437

MA Hui-Fang, YANG Xing-Yu. Study on chirps induced by the high-order nonlinear effects in the negative refractive media[J]. J4, 2009, 26(3): 346-351.

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