采用新型棱镜的光学隔离器  

An Optical Isolator Using a New Type Prism

作　　者：柳清菊[1] 林理忠[1] 

机构地区：[1]云南大学物理系,昆明650091

出　　处：《光学学报》1999年第8期1130-1133,共4页Acta Optica Sinica

摘　　要：在理论上分析并用实验研究了采用新型光学棱镜作起偏器、检偏器后与偏振无关的光学隔离器性能的变化。结果表明， 隔离器的反向隔离比在原来的基础上提高了将近一倍， 而正向插入损耗增加得很少。研制的光学隔离器光纤光纤的正向损耗与反向隔离比分别为－ ０．８２ ｄ Ｂ 及－ ４８．１ ｄ Ｂ。The perform ance of a polarization independent isolator using a new type polariz ing splitting prism are analysed in theory and studied by experim ent. Theoretical and experi m ental results indicate that the isolation is nearly tw o tim es greater than before, and the in sertion loss just increases a little. Experim ent show s that the insertion loss and the isolationfrom fiber to fiber of the isolator are - 0.82 d B and - 48.1 d B, respectively.

关 键 词：光学隔离器 偏振分光棱镜 反向隔离比 

分 类 号：O435.2[机械工程—光学工程]