新型中心波长稳定的高效率L波段掺铒光纤超荧光光源  

A Novel Mean Wavelength Stability and High Efficiency L-Band Superfluorescent Fiber Source

作　　者：王秀琳[1,3] 黄文财[2] 黄晓菁[3] 黄朝红[2] 许惠英[2] 蔡志平[2] 

机构地区：[1]厦门大学物理系,福建厦门361005 [2]厦门大学电子工程系,福建厦门361021 [3]集美大学物理系,福建厦门361005

出　　处：《中国激光》2009年第3期647-652,共6页Chinese Journal of Lasers

基　　金：福建省新世纪优秀人才项目(X07204);厦门大学科技创新重点项目(k70007);福建省教育厅科技项目 (JA08138)资助课题

摘　　要：采用后向抽运的两级级联的掺铒光纤超荧光光源的新型结构,运用同步抽运技术对两级光纤按比例进行后向抽运,从而实现高效率且中心波长稳定的L波段超荧光光源输出。研究了光纤总长度、两级光纤长度分配以及抽运比例对超荧光光源输出特性参数的影响。结果表明,通过采用两级级联后向结构可以将光谱从C波段有效地转移到L波段,而且能够实现在高抽运功率下具有中心波长对抽运功率波动不敏感的特性。在290 mW功率1;1抽运下,实验获得了输出功率97 mW,线宽47.3nm,中心波长稳定的L波段超荧光光源。A novel two-stage cascade dual-backward pumped configuration using the synchronous pumping technique is presented to achieve a mean wavelength stable L-band superfluorescent fiber source (SFS).The effects of total fiber length,fiber length arrangement of the two-stage,and pump ratio on the output characteristics of the L-band SFS in terms of mean wavelength,linewidth,and output power are investigated.The results show that not only the output spectrum can be moved form C-band to L-band effectively but also the pump power independent mean wavelength operation can be achieved by using the two-stage cascade dual-backward pumped configuration.A SFS with linewidth of 47.3 nm,output power of 97 mW,and high mean wavelength stability is experimentally obtained with a pump ratio of 0.5 and 290 mW total pump power.

关 键 词：光纤光学 超荧光光纤光源 放大自发辐射 L波段 

分 类 号：TN253[电子电信—物理电子学]