This article is cited in 4 papers

METHODOLOGICAL NOTES

Dynamics of frequency-modulated wave packets in optical guides with complex-valued material parameters

I. O. Zolotovskii^a, R. N. Minvaliev^b, D. I. Sementsov<sup>a

a</sup> Ulyanovsk State University
^b State Scientific Center `Research Institute of Atomic Reactors'

Abstract: Features of wave packet dynamics in linear and nonlinear optical fibers are studied allowing for complex-valued dispersion parameters. It is shown that the presence of imaginary components in dispersion parameters affects considerably the compression behavior of a wave packet in single-element and cascaded optical fibers; causes a shift in carrier frequency, and creates frequency-modulated wave packets with a superluminal envelope maximum.

PACS: 42.25.Bs, 42.65.Re, 42.79.Gn

Received: June 9, 2012
Revised: August 28, 2013
Accepted: September 6, 2013

DOI: 10.3367/UFNr.0183.201312e.1353

 English version: Physics–Uspekhi, 2013, 56:12, 1245–1256

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