Route to broadband chaos in a chaotic laser diode subject to optical injection

被引：114
作者：
Wang, An-Bang [1 ]
Wang, Yun-Cai [1 ]
Wang, Juan-Fen [1 ]
机构：
[1] Taiyuan Univ Technol, Dept Phys, Coll Sci, Taiyuan 030024, Peoples R China
来源：
OPTICS LETTERS | 2009年 / 34卷 / 08期
关键词：
SEMICONDUCTOR-LASERS; BANDWIDTH; MODULATION;
D O I：
10.1364/OL.34.001144
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally and numerically demonstrate a route to bandwidth-enhanced chaos that is induced by an additional optical injection for a chaotic laser diode with optical feedback. The measured and calculated optical spectra consistently reveal that the mechanism of bandwidth enhancement is the interaction between the injection and chaotic laser field via beating. The bandwidth can be maximized only when the injected light is detuned into the edge of the optical spectrum of the chaotic laser field and the beating frequency exceeds the original bandwidth. The simulated dynamics maps indicate that 20 GHz broadband chaos can be obtained by commonly used laser diodes. (C) 2009 Optical Society of America
引用
收藏
页码：1144 / 1146
页数：3
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