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Opt Lett. 1987 Apr 1;12(4):272-4.

Evolution of femtosecond pulses in single-mode fibers having higher-order nonlinearity and dispersion.

Abstract

Using computer simulations, we examine the effects of higher-order dispersive and nonlinear propagation processes on the spectral and time development of ultrashort, high-intensity pulses propagating in single-mode optical fibers having normal dispersion. Our results indicate that both the cubic-dispersion term and the shock term of the nonlinear Schrödinger equation contribute to asymmetry in the pulse power spectrum and cause highly nonlinear chirp.

PMID:
19738862
[PubMed]
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