偏振保持型磁光光开关的设计方案  

Design of A Polarization-maintaining Optomagnetic Switch

作　　者：叶小华[1] 叶会亮[2] 黄旭光[1] 

机构地区：[1]华南师范大学光子信息技术实验室,广东广州510006 [2]南昌大学理学院

出　　处：《激光与红外》2008年第10期1011-1014,共4页Laser & Infrared

基　　金：广东省自然科学基金(No.07117866);国家自然科学基金(No.60507007)资助

摘　　要：提出并分析了偏振保持型(PM)1×2磁光开关的设计方案,采用该设计易于获得紧凑的结构及有效降低器件成本。理论分析了其实现原理以及各个光学参数,并由实验证实了该方案的有效性。设计结果表明,采用该方案能获得低损耗且结构简单的偏振光开关,其不同通道的串扰小,消光比性能优良,易于装配且适于在通信系统中集成。Proposed in this paper is the design and fabrication for novel polarization-maintaining （PM）optomagnetic switches. Herein two scheme are presented which are 1×2 devices respectively. Theoretical analysis shows its working principle and optical performance. Experiment validations demonstrate their effectiveness in addition. Results obtained show that the switch devices can be more compact and easily assembled by adopting proposed scheme, and the optical performance of the design is excellent which featured by their ultra-low channel crosstalk, super polarization extinction ratio （PER） and insertion loss （IL） as well.

关 键 词：光开关 偏振 消光比 串扰 接入损耗 

分 类 号：O482.55[理学—固体物理] TN602[理学—物理]