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首页> 外文期刊>Optical engineering >Modulation response characteristics of a semiconductor laser with phase-conjugate feedback
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Modulation response characteristics of a semiconductor laser with phase-conjugate feedback

机译：具有相位共轭反馈的半导体激光器的调制响应特性

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摘要

Modulation response characteristics of a semiconductor laser with a phase-conjugate feedback mirror is studied. Modulation response equations about the amplitude and frequency chirping of the laser are deduced in detail. It is demonstrated that the amplitude and frequency chirping responses are the function of the modulation angular frequency, optical feedback level, and delayed time. Numerical results illustrate that the amplitude response and modulation bandwidth of the laser are larger than that of the solitary laser when the optical amplitude reflectivity is <0.0022. When the optical amplitude reflectivity is increased further, the peaks of the amplitude response of the laser show periodic variability while the modulation angular frequency at the maximal value of the amplitude response is added; however, the frequency chirping can be enlarged or reduced. The large drive current or the large detuning can enhance the modulation response and frequency chirping.
机译：研究了具有相位共轭反馈镜的半导体激光器的调制响应特性。详细推导了有关激光器幅度和频率线性调频的调制响应方程。结果表明，振幅和频率线性调频响应是调制角频率，光反馈电平和延迟时间的函数。数值结果表明，当光振幅反射率＜0.0022时，该激光器的幅度响应和调制带宽大于孤立激光器。当光学幅度反射率进一步增加时，激光器的幅度响应的峰值表现出周期性的变化，同时增加了幅度响应最大值处的调制角频率。但是，可以增大或减小频率线性调频。大的驱动电流或大的失谐可以增强调制响应和频率线性调频。

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