Dynamical scenarios of mutually delay-coupled semiconductor lasers in the short coupling regime
Dynamical scenarios of mutually delay-coupled semiconductor lasers in the short coupling regime
复制标题
短耦合状态下相互延迟耦合半导体激光器的动态场景
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
W. Elsaber
中科院分区：
文献类型：
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作者：
E. Wille;M. Peil;Ingo Fischer;W. Elsaber
我们提出了两个延迟耦合器件相同的半导体激光器的动力学的实验和数值研究。我们专注于制度的短延迟时间的耦合延迟是可比的周期的弛豫振荡频率。我们发现的强度动力学的特征方案取决于光谱失谐和耦合相位。对于小的光谱失谐，耦合激光器锁定到相同的频率，并表现出稳定的发射。对于较大的失谐量，我们发现明显的振荡的输出强度。振荡频率随失谐频率、耦合时间和耦合相位的变化呈阶梯状。此外，耦合相位还影响振荡频率和两个振荡激光器之间的相位关系。
We present experimental and numerical studies of the dynamics of two delay-coupled device-identical semiconductor lasers. We concentrate on the regime of short delay times where the coupling delay is comparable to the period of the relaxation oscillation frequency. We find characteristic scenarios in the intensity dynamics depending on the spectral detuning and the coupling phase. For small spectral detuning, the coupled lasers lock to the same frequency and exhibit stable emission. For larger detuning, we find pronounced oscillations of the output intensity. The frequency of oscillation shows a stair-like behavior which depends on the detuning frequency, the coupling time and the coupling phase. In addition, the coupling phase also affects the oscillation frequency and the phase relation between the two oscillating lasers.