带通型全光纤声光可调滤波器  

Bandpass all-fiber acousto-optic tunable filter

作　　者：曹岱宗[1] 戴恩光[1] 

机构地区：[1]北京大学信息科学技术学院,北京100081

出　　处：《红外与激光工程》2006年第z5期91-94,共4页Infrared and Laser Engineering

基　　金：国家973项目课题资助

摘　　要：为了克服普通单模光纤只能实现带阻滤波器的问题,采用在单模光纤中间插入基模阻波器的办法实现了带通型全光纤声光可调谐滤波器。这种带通滤波器结构具有边带抑制比高、零频移、低偏振敏感、结构简单、易于封装等特点。Traditionally,acousto-optic tunable filters based upon single mode fiber are of band-stop spectrum.In this paper,a seldom-reported bandpass tunable optical filter is demonstrated.The bandpass bacousto-optic tunable filter is realized with a single mode fiber,on which special structure is designed.The band-pass filter with a wide tunable-range,zero frequency shift and low polarization sensitive characteristics.

关 键 词：声光滤波器 带通滤波器 光纤传感 

分 类 号：TN911.73[电子电信—通信与信息系统]