一种高性能光纤ASE光源的优化与研究  

Optimization and study on a high-performance ASE fiber source

作　　者：刘颖刚[1] 乔学光[1] 贾振安[1] 张伟[2] 冯德全[1] 樊伟[1] 

机构地区：[1]西安石油大学陕西省光电传感测井重点实验室,陕西西安710065 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055

出　　处：《光电子．激光》2011年第10期1475-1478,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(60727004;60654001);国家"863"计划资助项目(2009AA06Z203;2007AA03Z413);教育部科技创新工程资助项目(708087);陕西省"13115"科技创新工程重大科技专项资助项目(2009ZDKG-42);陕西省教育厅资助项目(09JK704)

摘　　要：根据光纤Bragg光栅(FBG)传感系统光源应用需求,研制了一种双级双程结构的掺Er光纤(EDF)ASE(amplified spontaneous emission)光源,并对光源结构、输出方式、EDF长度以及泵浦功率进行了优化研究。结果表明,在最佳条件下实现了输出中心波长为1 564.5nm、功率高达35.8mW和带宽约为85nm的C+L波段ASE输出;光谱平坦度在1537～1597nm范围内小于0.5dBm,在1525～1605nm范围内小于2dBm;同时提高光源的输出带宽、功率和光谱平坦度3个性能指标,可以解决多FBG复用传感系统对光源带宽、功率以及平坦度性能指标的要求。Based on the application requirements of light source in fiber Bragg grating （FBG） sensing system a twc-stage double-pass and erbium-doped amplified spontaneous emission （ASE） fiber source is designed. The structure of source, way of output, length of erbium-doped fiber and pump power are opti- mized. The results show that under the optimal condition, the ASE output with central wavelength at 1 564. 5 nm,output power of 35.8 mW and 85 nm bandwidth in C-＋-L band spectrum is achieved. Its flatness from 1 525 nm to 1 605 nm is less than 2 dBm and especially within 1537 nm and 1597 nm,the flatness is less than 0.5 dBm. The output bandwidth, power and spectral flatness have been enhanced simultaneously,which could meet the demands in fiber Bragg grating sensing systems.

关 键 词：光纤光学 ASE光源 掺Er光纤(EDF) 平坦度 

分 类 号：TN253[电子电信—物理电子学]