双尾纤式多功能光隔离器研究  

Double-function Optical Isolator Utilizing two Fiber Tips and Lens Twice

作　　者：田燕宁[1] 方强[2] 王永昌[1] 孙爱晶[2] 白菊蓉[2] 

机构地区：[1]西安交通大学现代物理研究所,西安710049 [2]西安邮电学院电信系,西安710061

出　　处：《光子学报》2005年第2期230-232,共3页Acta Photonica Sinica

基　　金：国家自然科学基金资助项目 ( 60277003 );国家"十五"科技攻关资助项目(2002BA106B07-5)

摘　　要：提出并成功研制了一种具有功能复用的新型的多功能光隔离器结构,对其进行了传输特性性能理论分析,分析表明,该器件具有与单尾纤光隔离器相同的低插入损耗,高隔离度等特性,实验结果显示,所设计的 1550nm双通道多功能光隔离器插入损耗分别为 0. 28dB和 0. 11dB,隔离度分别为 55dB和 54dB,达到了隔离器需要满足的标准,性能良好,同时具有成倍降低器件制造成本的效用.Using two-fiber tips and lens twice, An innovated double-channel optical isolator has been advanced and fabricated, which duplicates the function in comparison with conventional optical isolator with single fiber tip. The typical insertion loss and isolation of the developed isolator are as good as that of the conventional optical isolator in theory. It was experimentally confirmed that forward insertion loss of two channels at 1550 nm are lower than 0.28 dB and 0.11 dB, backward isolation of that are over 55 dB and 54 dB respectively. It's most important that the isolator, which can be fabricated with duplicated function and high characteristics, also have a low cost and a small volume comparatively.

关 键 词：光隔离器 双尾纤光纤头 琼斯矩阵 隔离度 插入损耗 

分 类 号：O436[机械工程—光学工程]