Multiple filamentation induced by input-beam ellipticity

被引：156

作者：

Dubietis, A

Tamosauskas, G

Fibich, G

Ilan, B

机构：

[1] Vilnius State Univ, Dept Quantum Elect, LT-2040 Vilnius, Lithuania

[2] Tel Aviv Univ, Dept Math Appl, IL-69978 Tel Aviv, Israel

[3] Univ Colorado, Dept Math Appl, Boulder, CO 80309 USA

来源：

OPTICS LETTERS | 2004年 / 29卷 / 10期

关键词：

D O I：

10.1364/OL.29.001126

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We provide what is to our knowledge the first experimental evidence that multiple filamentation (MF) of ultra-short pulses can be induced by input beam ellipticity. Unlike noise-induced MF, which results in complete beam breakup, the MF pattern induced by small input beam ellipticity appears as a result of nucleation of annular rings surrounding the central filament. Moreover, our experiments show that input beam ellipticity can dominate the effect of noise (transverse modulational instability), giving rise to predictable and highly reproducible MF patterns. The results are explained with a theoretical model and simulations. (C) 2004 Optical Society of America.

引用

页码：1126 / 1128

页数：3

共 19 条

[1] Filamentation patterns in Kerr media vs. beam shape robustness, nonlinear saturation and polarization states [J].