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FDTD Method for Retrieving the Nonlinear-Index Coefficient Based on Self-Phase Modulation

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Abstract:

In this paper we have retrieved the nonlinear-index coefficient based on the self-phase modulation which is resulted from a high-power laser pulses propagating in a third-order nonlinear optical material. Using the finite-difference time-domain method, the spectrum analyses have been performed with the optical pulses with different peak-powers propagating through the nonlinear optical materials with different lengths. The nonlinear-index coefficients were obtained by using the numbers of the spectrum peaks, and how to improve the accuracy has been discussed.

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Periodical:

Advanced Materials Research (Volumes 798-799)

Pages:

245-248

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.798-799.245

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Cite this paper

Online since:

September 2013

Authors:

Qing Wei Liu, Dong Mo Song

Keywords:

Finite Difference Time Domain (FDTD) Method, Nonlinear Refractive Index Coefficient, Self-Phase Modulation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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