Ghost resonance in a semiconductor laser with optical feedback
Ghost resonance in a semiconductor laser with optical feedback
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DOI：
10.1209/epl/i2003-00285-3
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发表时间：
2003-10-01
期刊：
影响因子：
--
通讯作者：
García-Ojalvo, J
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文献类型：
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作者：
Buldú, JM;Chialvo, DR;García-Ojalvo, J
我们在实验上和数值上都显示了一个鬼共振的突然功率下降所表现出的半导体激光器受到两个同时弱周期信号驱动的光反馈。小信号调制与系统的复杂内部动力学相结合，以在鬼频率（ghost frequency）（即，驱动信号中不存在的频率）处产生谐振。这是一个以前没有报道过的显著的非线性效应，并且与Chialvo等人（Phys.Rev.E，65（2002）050902（R））最近的理论预测一致。
We show both experimentally and numerically a ghost resonance in the sudden power dropouts exhibited by a semiconductor laser subject to optical feedback driven by two simultaneous weak periodic signals. The small signal modulation conspires with the complex internal dynamics of the system to produce a resonance at a ghost frequency, i.e. a frequency that is not present in the driving signals. This is an eminently nonlinear effect not reported before and agrees with the recent theoretical predictions by Chialvo et al. (Phys. Rev. E, 65 (2002) 050902(R)).