双包层塑料光纤放大器热漂白现象的研究  

Studies on Thermal Bleaching Phenomenon in Double-cladding Plastic Optical Fiber Amplifiers

作　　者：史洪印[1] 于荣金[1] 李炳新[1] 胡建武[1] 刘焰发[2] 丘志仁[2] 汪河洲[2] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004 [2]中山大学超快速激光光谱学国家重点实验室,广东广州510275

出　　处：《光电子．激光》2002年第7期657-660,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目 ( 6 99770 16 )

摘　　要：对双包层结构如何减小塑料光纤放大器 (POFA)中有机染料的热漂白同时又保持较高的泵浦效率进行了理论分析 ,并用实验证实了结构的可行性。获得的耦合效率为 80 % ;泵浦功率密度为 32 W/cm2 。Using double-cladding structure we enhanced the coupling efficiency and power of pump light, greatly decreased power density of pump light in fiber core, and suppressed the bleaching phenomenon. The high absorbable power ratio (pump efficiency) can be kept by means of offset double cladding structure. Both theoretical analysis and experimental result confirm the feasibility and advantage of this structure. The coupling efficiency of 80% and pump power density of 3.2 W/cm2 were obtained.

关 键 词：双包层塑料光纤 热漂白 塑料光纤放大器 POFA 罗丹明B RB 泵浦功率 

分 类 号：TN722[电子电信—电路与系统] TN818