双级式楔形光隔离器中的光路分析  

Analysis of tracks of light rays in dual-stage wedge type fiber optical isolator

作　　者：徐程[1] 马晓明[2] 刘劲松[1] 

机构地区：[1]华中科技大学激光技术与工程研究院,武汉430074 [2]深圳职业技术学院通信工程系,深圳518055

出　　处：《激光技术》2005年第5期455-458,共4页Laser Technology

摘　　要：通过建立五维坐标系,根据几何光学和晶体物理学的理论,对光在双级式偏振无关楔形光隔离器中的光轨迹情况进行了研究。把光轨迹根据介质的不同分为若干段,法拉第旋转器作为平行平板,等效为空气介质处理,从而使结构和计算简洁化。为定量地表达光隔离器输出的两束光的偏移、相互距离与光程差提供方法。The rays＇transmitting tracks in the dual-stage wedge type fiber optical isolator was described. Five dimensions coordinates were built at first, then the theories of crystal optics and solid geometry were used to get the right locations of the rays in between interfaces. At the same time the Faraday rotators were simplified in the analysis. The tracks of extraordinary ray were emphasized especially. With the method, the rays＇lateral displacements, distance between two output rays and optical path difference can be computed precisely for a certain wedge type fiber optical isolator.

关 键 词：光隔离器 光楔 法拉第旋转器 o光 E光 光轨迹 五维坐标 

分 类 号：TN253[电子电信—物理电子学]