二氧化碳激光与光子晶体光纤耦合的研究  

Study on coupling CO_2 laser into photonic crystal fiber

作　　者：李沙[1] 施伟华[1] 

机构地区：[1]南京邮电大学光电工程学院,江苏南京210046

出　　处：《光通信研究》2013年第5期27-29,共3页Study on Optical Communications

基　　金：江苏省产学研创新基金资助课题(BY2010101)

摘　　要：文章以CO2激光器为光源,使用透镜耦合,将激光耦合到光纤并对这种耦合进行了研究。运用ZEMAX软件对CO2激光光源与光纤模型进行建模分析,并设计了一种新型的可用于传输10.6μm CO2激光的低损耗带隙型红外光子晶体光纤,运用结构参数r1=11.39mm、r2=-25.43mm、透镜厚度为3mm、有效焦距BFL=11.16mm的硒化锌透镜进行耦合,得到束腰与透镜的距离为1 102.50mm,像方束腰到透镜的距离为17.30mm,耦合值为94%。Using CO2 laser as a light source,this paper investigates coupling the laser light into a Photonic Crystal Fiber （PCF） by using a lens.It first conducts the modeling and analysis of the laser light and fiber model by using the ZEMAX software and designs a novel low-loss Photonic Band-Gap （PBG）infrared PCF for transmitting 10.6μm CO2 laser light.Then,it completes the coupling by using a ZnSe lens with the structural parameters ofr1 =11.39 mm,r2 =-25.43 mm,thickness of 3 mm and BFL=11.16 mm and finds that the distance between the waist and the lens is 1 102.50 mm,that between the image waist and the lens is 17.30 mm and the coupling value is 94%.

关 键 词：CO2激光 硒化锌透镜 带隙型光子晶体光纤 低损耗 高效耦合 

分 类 号：TN929.11[电子电信—通信与信息系统]