Chaos suppression in a Nd:YVO4 laser by biharmonical pump modulation

被引：3
|
作者：
Wei, Ming-Dar [1 ]
Hsu, Chih-Chang [1 ]
Huang, Han-Hui [2 ]
Wu, Hsiao-Hua [3 ]
机构：
[1] Natl Cheng Kung Univ, Dept Electroopt Engn, Tainan 701, Taiwan
[2] Feng Chia Univ, Dept Photon, Taichung 407, Taiwan
[3] Tunghai Univ, Dept Phys, Taichung 407, Taiwan
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 19期
关键词：
SOLID-STATE LASER;
D O I：
10.1364/OE.18.019977
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This work demonstrates the suppression of chaos in a Nd:YVO4 laser by biharmonical pump modulation (the first for chaos-inducing and the second for chaos-suppressing). The laser exhibits chaotic behavior when only the first signal is applied for pump modulation and its frequency is adjusted close to the relaxation-oscillation frequency. Adding the second signal with subhamonic and a specific phase difference to the first modulation signal will reshape the modulated waveform of the pump beam to suppress the aforementioned chaotic behavior. The initial phase of the second harmonic perturbation plays an important role in the suppression of chaos. This result is confirmed by numerical simulation. (C) 2010 Optical Society of America
引用
收藏
页码：19977 / 19982
页数：6
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