Optical discrete solitons in waveguide arrays. I. Soliton formation

被引:79
作者
Eisenberg, HS [1 ]
Morandotti, R
Silberberg, Y
Arnold, JM
Pennelli, G
Aitchison, JS
机构
[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel
[2] Univ Glasgow, Dept Elect & Elect Engn, Glasgow G12 8QQ, Lanark, Scotland
[3] Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
关键词
D O I
10.1364/JOSAB.19.002938
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We investigate the generation of discrete spatial solitons in arrays of coupled waveguides. Light was launched into the center of the array, and different beam sizes and array geometries were tested. At low power, the propagating field spreads as it couples to more waveguides. When the intensity is increased, localization is observed around the input waveguides, leading to the formation of a discrete soliton. For wide input beams, exciting a few waveguides, soliton splitting, which is due to instability induced by multiphoton absorption, is observed. All of these effects are described well by a coupled-mode formalism. (C) 2002 Optical Society of America.
引用
收藏
页码:2938 / 2944
页数:7
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