掺铒光纤宽带光源的优化及光谱分割实验研究  

Experimental Research on the Optimization of Erbium-doped Superfluorescent Fiber Source and Spectra Slicing

作　　者：李家方[1] 陈胜平[1] 吕可诚[1] 李乙钢[1] 冯鸣[1] 闫培光[1] 李静[1] 

机构地区：[1]南开大学物理科学学院光电信息科学系,天津300071

出　　处：《光电子技术》2004年第2期104-109,共6页Optoelectronic Technology

基　　金：国家高技术研究发展计划 ( No.2 0 0 3 AA3 1 2 1 0 0 ) ;国家自然科学基金资助项目 ( No.60 3 770 1 0 ;60 1 3 70 1 0 )

摘　　要：实验研究了不同光纤反射镜和不同光纤长度下双程后向结构掺铒超荧光光纤光源的输出特性 ,提出了双程后向结构掺铒超荧光光纤光源的优化设计原则。利用光纤 Michelson干涉仪和光纤 Mach- Zehnder干涉仪 ,对其进行光谱分割 ,得到了 1 5 5 0 nm附近 ( 1 5 4 2～ 1 5 5 9nm)约 2 0个波长的输出 ,波长间隔～ 0 .8nm,不平坦度小于 0 .5 d B,消光比大于 1 4d B。The effects of the variations in fiber length, fiber mirror reflectance on efficiency and output power are experimentally investigated, for erbium doped double pass backward(DPB) superfluorescent fiber source(SFS). By using a fiber Michelson interferometer and a fiber Mach Zehnder interferometer, respectively, as spectra slicing component, two multi wavelength fiber sources(MWFS) with～20 channels (from 1 542 to 1 599 nm) are got. The channel spacing of the MWFS is ～0.8 nm and the intensity fluctuation among channels is less than 0.5 dB. The extinction ratio of all channels is above 14 dB.

关 键 词：超荧光光源 多波长光源 双程后向结构 光谱分割 

分 类 号：TN253[电子电信—物理电子学] TN248