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新颖的高功率L-波段掺铒光纤超荧光光源
引用本文:刘颖刚,乔学光,贾振安,冯德全. 新颖的高功率L-波段掺铒光纤超荧光光源[J]. 光学技术, 2006, 32(5): 653-655
作者姓名:刘颖刚  乔学光  贾振安  冯德全
作者单位:西安石油大学,理学院,西安,710065;西北大学,光子学与光子技术研究所,西安,710069;西安石油大学,理学院,西安,710065
基金项目:国家高技术研究发展计划“863”计划(2002AA313150),国家自然科学基金(69877025),陕西省科技攻关项目(2003K015J-28),西安石油大学科技创新项目(2005-20)
摘    要:研究了L-波段超荧光在光纤中的产生机理,设计了一种带光纤圈反射器的双级双程前向输出L-波段光源结构,通过对两级采用掺铒浓度不同的光纤并优化其长度及两级泵浦光功率,实验中获得了功率高达19.86mW(12.98dBm)、中心波长为1577.421nm的L-波段(1555-1620nm)超荧光光源。实现了低浓度掺铒光纤起诱导光及改善光谱的作用,高浓度光纤为主要发光源,采用光纤圈反射器提高了泵浦光的利用效率、光源的平坦度及稳定性。同时分析了结构中各个参量对光源各方面性能的影响,对光源的设计具有指导意义。

关 键 词:L-波段超荧光光纤光源  掺铒光纤(EDF)  宽带光源  放大的自发辐射(ASE)
文章编号:1002-1582(2006)05-0653-03
修稿时间:2005-09-20

Novel high-power L-band Erbium-doped fiber superfluorescent source
LIU Ying-gang,QIAO Xue-guang,JIA Zhen-an,FENG De-quan. Novel high-power L-band Erbium-doped fiber superfluorescent source[J]. Optical Technique, 2006, 32(5): 653-655
Authors:LIU Ying-gang  QIAO Xue-guang  JIA Zhen-an  FENG De-quan
Abstract:The primary principle of L-band superfluorescent fiber source was presented.A novel dual-stage double-pass forward pumping configuration with the fiber loop reflector was designed and achieved.Through experiment by optimization the parameter such as fiber length and pump power at two stages,the output power of L-band was high up to 19.86mW(12.98dBm),and mean wavelength was 1577.421nm. The ASE of first stage was used as seed signal,the second was main source of L-band,the efficiency of pumping and flatness was enhanced by using the first stage and fiber loop reflector.Meanwhile,the effect about source with different parameters was analyzed,it can provide help for design of the source.
Keywords:L-band superfluorescent fiber source(SFS)  erbium-doped fiber(EDF)  broadband light source  amplified spontaneous emission(ASE)
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