利用光机械相互作用和参量下转换提高光学压缩  

Enhanced Optical Squeezing with Optomechanical Interaction and Parametric Down Conversion

作　　者：苏艳芳 翟泽辉[2,3] 郭娟 郝温静 SU Yanfang;ZHAI Zehui;GUO Juan;HAO Wenjing(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Shanxi University,Taiyuan 030006,China;School of Physics and Electronic Engineering,Shanxi University,Taiyuan 030006;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学光电研究所,山西太原030006 [2]山西大学物理与电子工程学院,山西太原030006 [3]极端光学协同创新中心,山西太原030006

出　　处：《山西大学学报（自然科学版）》2019年第4期860-865,共6页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(91536222;11174189);国家重点基础研发计划(2016YFA0301404)

摘　　要：文章讨论了在同一个光学腔中包含两种压缩光产生机制的光学系统。这两种机制分别是光机械相互作用和参量下转换相互作用,它们各自都可用于产生光学压缩态。计算表明两者的结合可以起到增强压缩度的作用。在某些边带频率处增强后的压缩可以优于任何一种机制单独存在时的压缩,不过相对来说在其他边带频率的压缩会变差。此外,参量下转换的引入可以将光机相互作用增强到强耦合区域。We discuss enhanced optical squeezing with two different interactions, which are optomechanical interaction and parametric down conversion, and each of which can be used to generate optical squeezing. It is shown that the enhanced bandwidth of squeezing can be even larger than that of perfect parametric amplifier in price of degradation of squeezing at zero frequency.Remarkably, optical squeezing generated by optomechanical interaction can be considerably enhanced with a relatively weak parametric down conversion interaction. Moreover, parametric down conversion interaction also can strength optomechanical interaction to strong coupling regime.

关 键 词：光学压缩 光力学 参量下转换 

分 类 号：O436[机械工程—光学工程]