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首页> 外文会议>2014 IEEE Workshop on complexity in engineering >Polarization dynamics in a transverse multimode class b laser: Role of the optical feedback
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Polarization dynamics in a transverse multimode class b laser: Role of the optical feedback

机译：横向多模B类激光器中的偏振动力学：光反馈的作用

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摘要

We investigate the polarization dynamics in a quasi-isotropic CO laser emitting on the annular mode subjected to an optical feedback. We observe a complex dynamics in which spatial mode and polarization competition are involved. The observed dynamics is well reproduced by a model that discriminates between the intrinsic asymmetry due to the kinetic coupling of molecules with different angular momenta and the anisotropy induced by the polarization feedback. We observe various dynamical regimes including chaotic dynamics and show that feedback changes these states from regular to chaotic and vice versa. Such a dynamics is also accompanied by spontaneous between the patterns that indicate the existence of bistability in the system. Finally the possible applications to polarization coding are discussed.
机译：我们研究在环形模式下发射的准各向同性CO激光器中的偏振动力学受到光反馈。我们观察到其中涉及空间模式和极化竞争的复杂动力学。所观察到的动力学可以很好地重现，该模型可以区分具有不同角动量的分子的动力学耦合所引起的固有不对称性与极化反馈所引起的各向异性。我们观察到包括混沌动力学在内的各种动力学机制，并表明反馈将这些状态从规则状态更改为混沌状态，反之亦然。这种动态性还伴随着模式之间的自发性，表明系统中存在双稳态。最后讨论了极化编码的可能应用。

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