Quantum theory of a two-mode open-cavity laser
Quantum theory of a two-mode open-cavity laser
复制标题
双模开腔激光器的量子理论
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
M. Orszag
中科院分区：
文献类型：
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作者：
V. Eremeev;S. Skipetrov;M. Orszag
我们发展了一个开腔激光器的量子理论，假设只有两个模式竞争增益。我们发现，当泵浦超过阈值时，这些模式相互作用，形成一个复合模式，成为激光模式。这种复合模式具有典型激光模式的所有特征，而其精确行为明确地取决于腔的开放程度。我们用密度-矩阵的形式来解决这个问题，并推导出光场的主方程。我们的结果在随机激光系统的背景下特别有趣。
We develop the quantum theory of an open-cavity laser assuming that only two modes compete for gain. We show that the modes interact to build up a composite mode that becomes the lasing mode when pumping exceeds a threshold. This composite mode exhibits all the features of a typical laser mode, whereas its precise behavior depends explicitly on the openness of the cavity. We approach the problem by using the density-matrix formalism and derive the master equation for the light field. Our results are of particular interest in the context of random laser systems.