偏振无关的旋光双反射结构的实验研究  

Experimental study on polarization-independent reflector structure based on magneto-optical crystal and two mirrors

作　　者：赵顾颢[1] 赵尚弘[1] 幺周石[2] 郝晨露[3] 蒙文[1] 王翔[1] 朱子行[1] 刘丰[2] 

机构地区：[1]空军工程大学信息与导航学院,西安710077 [2]中国空间技术研究院西安分院,西安710000 [3]空军工程大学防空反导学院,西安710077

出　　处：《物理学报》2013年第13期234-238,共5页Acta Physica Sinica

基　　金：中国空间技术研究院科技委员会发展研究项目(批准号:2011WK11)资助的课题~~

摘　　要：完成了偏振无关双旋光晶体双反射结构的实验研究.根据其偏振补偿特点对双旋光晶体双反射结构进行简化,提出了一种偏振无关的单旋光晶体双反射结构.实验表明,两种反射结构的偏振保持度均能达到99.97%以上.作为对比,分别测试了单个反射镜反射90和两个反射镜反射90时的输出光偏振态.该条件下,无保偏处理的反射镜的偏振保持度分别只有92.1%和76.2%.The experimental demonstration of polarization-independent reflection structure that consists of two magneto-optical crystals and two mirrors is reported. According to the characteristics of polarization compensation, the reflection structure was simplified in this paper. A single magneto-optical crystal and two mirrors reflection structure is presented to simplify the polarization-independent reflection structure. The experiment shows that the degrees of polarization maintenance of the two reflection structures are both higher than 99.97%. By way of contrast, the polarization states of 90° reflection laser of single mirror and two mirrors are measured. Under these conditions, the degrees of polarization maintenance of mirrors are 92.1% and 76.2%, respectively.

关 键 词：偏振态 偏振无关反射 旋光晶体 

分 类 号：O436.3[机械工程—光学工程]