光纤与S型曲线过渡的条波导的耦合  

Coupling of Fiber-associated with an S-shaped Transition Strip Waveguide

作　　者：杨文英[1] 

机构地区：[1]长春邮电学院

出　　处：《光学机械》1991年第5期46-49,共4页

摘　　要：本文说明了单模光纤与钛扩散铌酸锂(Ti:LiNbO_3)条波导的耦合与波导的制作参数有关,我们制作了条宽W=6μm,长2.3cm(采用S型弯曲)的钛膜厚度为600 、750 、950 、1100 ,扩散温度为1025℃,恒温9小时的Ti:LiNbO_3条波导,并测得光纤-波导(2.3cm)-光纤插入损耗在950 (Ti)(W=6μm、T=1025℃,t=9h时为最小。This paper describes the influence of fabrication para- meters on fiber-Ti:LiNbO_3 waveguide. We fabricated Ti- diffusion waveguide with 6μm wide strip(associated with an S-shaped transition),and 600 ,750 ,950 , 1100 thick- nesses at 1025℃ for 9 hour constant temperature. We have measured fiber-waveguide (2.3cm) -fiber insertion loss, showing that at λ=1.33μm and 950 thick with 6μm wi- de strip of Ti at 1025℃ for 9 hour constant temperature the loss is minimum.

关 键 词：光纤 波导 耦合 损耗 

分 类 号：TN25[电子电信—物理电子学]