Semiconductor Lasers : Stability , Instability and Chaos
Semiconductor Lasers : Stability , Instability and Chaos
复制标题
DOI：
10.1007/978-3-642-30147-6
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Ohtsubo
中科院分区：
文献类型：
--
作者：
J. Ohtsubo
在这一章中，我们讨论了半导体激光器的振荡条件，然后推导出速率方程，这是研究半导体激光器中混沌动力学的起点。这里描述的半导体激光器是具有单层有源区的法布里-珀罗型，然而，理论上可以以与法布里-珀罗激光器相同的方式处理诸如多量子阱（MQW）激光器和分布反馈（DFB）激光器的其他窄条边缘发射激光器。因此，从混沌动力学的角度来看，这些激光器的宏观特征表现出相同的行为，虽然详细的特性强烈依赖于激光器的结构和设备参数的特定值。由速率方程计算得到的弛豫振荡频率对半导体激光器的动力学特性有重要影响。在速率方程中引入了激光介质中自发辐射引起的随机噪声效应朗之万项。还讨论了半导体激光器的其它一些基本特性。
In this chapter, we discuss the oscillation conditions for semiconductor lasers and, then, derive the rate equations, which are the starting points of the study of chaotic dynamics in semiconductor lasers. The semiconductor laser described here is a Fabry-Perot type with a mono-layer of the active region, however other narrow-stripe edge-emitting lasers such as multi-quantum well (MQW) lasers and distributed feedback (DFB) lasers can be theoretically treated in the same manner as Fabry-Perot lasers. Therefore, the macroscopic features of these lasers show the same behaviors from the viewpoint of chaotic dynamics, although the detailed characteristics strongly depend on the laser structure and the particular values of the device parameters. The relaxation oscillation frequency, which is calculated from the rate equations, plays an important role for the dynamics of semiconductor lasers. The Langevin terms, which are stochastic noise effects induced by spontaneous emission of light in the laser medium, are introduced in the rate equations. Some other fundamental characteristics of semiconductor lasers are also discussed.