Guiding high-intensity laser pulses through hollow fibers: self-phase modulation and cross-talk of guided modes

被引：5

作者：

Kolevatova, OA ^{[1
]}

Naumov, AN ^{[1
]}

Zheltikov, AM ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Ctr Int Laser, Moscow 119899, Russia

来源：

OPTICS COMMUNICATIONS | 2003年 / 217卷 / 1-6期

基金：

俄罗斯基础研究基金会;

关键词：

ultrashort pulses; nonlinear optics;

D O I：

10.1016/S0030-4018(02)02339-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Self-phase modulation of short laser pulses and cross-talk of waveguide modes in a gas-filled hollow fiber are theoretically studied. The slowly varying envelope approximation is employed to derive analytical expressions for the amplitude and the phase of a laser pulse undergoing self-phase modulation in leaky modes of a hollow fiber. These expressions are then used to examine the effects related to waveguide losses, self-phase modulation of a short laser pulse, and excitation of higher order waveguide modes in a hollow fiber. The cross-talk of waveguide modes in a hollow fiber is shown to open an additional channel of energy losses. An analytical solution to the equation for the slowly varying envelope of a higher order waveguide mode building up in the field of the fundamental-mode field is derived. A strategy for optimizing hollow fibers for high-intensity pulse transmission and pulse compression is outlined. (C) 2002 Published by Elsevier Science B.V.

引用

页码：169 / 177

页数：9

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