采用新型棱镜的光学隔离器

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。

An Optical Isolator Using a New Type Prism

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.