Analysis of Polarization Switching Lasers
Analysis of Polarization Switching Lasers
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偏振切换激光器分析
DOI：
10.1143/jjap.38.4746
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发表时间：
1999
影响因子：
1.5
通讯作者：
T. Numai
中科院分区：
文献类型：
--
作者：
T. Numai
用半经典理论分析了偏振开关激光器的耦合系数。在光学跃迁的二能级、三能级和四能级模型中考虑双模操作。结果表明，在忽略吸收饱和的情况下，具有正交偏振的双模运转表现出弱耦合。只有当吸收饱和时，两正交模之间的耦合强度才强。作为比较，还分析了平行极化的双模工作，结果表明，只有当两模之间的频差较小或吸收饱和时，才会发生强耦合。在其他情况下，平行极化的两模之间的耦合强度很弱。
Coupling coefficients for polarization switching lasers are analyzed using the semiclassical theory. Two-mode operations are considered in two-, three-, and four-level models for optical transitions. It is shown that two-mode operations with orthogonal polarizations show weak coupling if saturation of absorption is neglected. Only if the saturation of absorption occurs, is the coupling strength between the two orthogonal modes strong. For comparison, two-mode operations with parallel polarizations are also analyzed, and it is shown that strong coupling occurs only when the frequency difference between the two-modes is small or absorption is saturated. In other cases, the coupling strengths between the two-modes with parallel polarizations are weak.