磁光晶体球型光纤光隔离器  

Fiber optical isolator with a spherical magneto optical crystal

作　　者：杨冬晓[1] 

机构地区：[1]浙江大学信息与电子工程学系

出　　处：《浙江大学学报（自然科学版）》1999年第2期193-196,共4页

基　　金：教育部留学回国人员科研启动基金;国家自然科学基金

摘　　要：探讨了一种磁光晶体球型光纤隔离器，用ＹＩＧ来研制器件的实验结构，其插入损耗、隔离度和反向损耗的测量结果分别优于８９ｄＢ、２８ｄＢ和４５ｄＢ．理论分析表明，这类器件的有效长度可达０．５ｍｍ以下，插入损耗低于１ｄＢ．A fiber optical isolator with a spherical magneto optical crystal was developed in this paper. The insertion loss, isolation and return loss of a experimental structure with a YIG sphere for this device were measured to be less than 8.9dB, greater than 28dB and 45dB, respectively. According to analysis the lowest insertion loss and the effetive lenght of this isolator could be droped down to 1dB and 0.5mm, respectively.

关 键 词：磁光晶体 光纤隔离器 光隔离器 光通信 

分 类 号：TN253[电子电信—物理电子学] TN929.11