Selection of unstable patterns and control of optical turbulence by Fourier plane filtering

被引:85
作者
Mamaev, AV
Saffman, M
机构
[1] Riso Natl Lab, Opt & Fluid Dynam Dept, DK-4000 Roskilde, Denmark
[2] Russian Acad Sci, Inst Problems Mech, Moscow 117526, Russia
关键词
D O I
10.1103/PhysRevLett.80.3499
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on selection and stabilization of transverse optical patterns in a feedback mirror experiment. Amplitude filtering in the Fourier plane is used to select otherwise unstable spatial patterns. Optical turbulence observed for nonlinearities far above the pattern formation threshold is stabilized by low-pass filtering of the optical power spectrum. Experimental observations obtained with a photorefractive nonlinearity are consistent with calculations based on a generic, cubic nonlinearity.
引用
收藏
页码:3499 / 3502
页数:4
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