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arXiv physics/9906027physics.optics
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自脉动半导体激光器的理论与实验

Self-Pulsating Semiconductor Lasers: Theory and Experiment

C. R. Mirasso, G. H. M. van Tartwijk, E. Hernandez-Garcia, D. Lenstra, S. Lynch, P. Landais, P. Phelan, J. O'Gorman, M. San Miguel, W. Elsasser

摘要:

我们报告了半导体CD激光器的自脉动频率的泵浦电流依赖性的详细测量。一个独特的扭结在这种依赖关系被发现和解释使用速率方程模型。扭结表示自脉动是弱持续的弛豫振荡的区域与发生Q开关的区域之间的过渡。仿真结果表明,自发发射噪声对这种交叉起着至关重要的作用。

英文摘要:

We report detailed measurements of the pump-current dependency of the self-pulsating frequency of semiconductor CD lasers. A distinct kink in this dependence is found and explained using rate-equation model. The kink denotes a transition between a region where the self-pulsations are weakly sustained relaxation oscillations and a region where Q-switching takes place. Simulations show that spontaneous emission noise plays a crucial role for the cross-over.

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