Modulational instability in nonlocal Kerr-type media with random parameters

被引：20
|
作者：
Doktorov, E. V. [1 ]
Molchan, M. A. [1 ]
机构：
[1] BI Stepanov Phys Inst, Minsk 220072, BELARUS
来源：
PHYSICAL REVIEW A | 2007年 / 75卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.75.053819
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The modulational instability of continuous waves in nonlocal focusing and defocusing Kerr media with stochastically varying diffraction (dispersion) and nonlinearity coefficients is studied both analytically and numerically. It is shown that nonlocality with sign-definite Fourier images of the medium response functions considerably suppresses the growth rate peak and bandwidth of instability caused by stochasticity. In contrast, nonlocality can enhance modulational instability growth for a response function with negative-sign bands.
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页数：6
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