一种差动光栅空间光桥接器  

A new optical hybrid of differential grating

作　　者：班卫华[1] 万玲玉[1] 刘立人[2] 

机构地区：[1]广西大学物理科学与工程技术学院,广西南宁530004 [2]中国科学院上海光学精密机械研究所,上海201800

出　　处：《广西大学学报（自然科学版）》2010年第2期359-362,共4页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(10964001);区研究生科研创新项目(T32250);广西自然科学基金资助项目(桂科青0728009)

摘　　要：提出了一种利用差动光栅实现空间光桥接器的方法,设计了可用于相干光探测系统的新型2×2的90°、2×2的180°和2×4的90°空间光桥接器,其中2×2的90°、180°空间光桥接器主要由差动光栅构成,2×4的90°空间光桥接器主要由差动光栅和偏振分束器构成,其具有体积小、重量轻和易于小型集成的优点,在激光相干通信和激光雷达领域有潜在应用。A method of realizing spatial optical bridge connection by differential grating was proposed and consequently new optical hybrids of 2 × 2 90°, 2 × 2 180° and 2 ×4 90°for optical coherent detection systems were designed. The optical hybrids of 2 × 2 90°and 180° mainly consist of the differential grating. The optical hybrids of 2× 4 90° consist mainly of a differential grating and the polarized splitters. They have the advantages of small size, light weight and easy miniaturization-in- tegration. Therefore, they have potential application in fields of laser coherent communications and laser radars.

关 键 词：相干探测 光桥接器 差动光栅 90°相移 180°相移 

分 类 号：TN29[电子电信—物理电子学] O436.1[机械工程—光学工程]