Yb/P/Al共掺双包层光纤的制备与激光性能  

Fabrication and Laser Performance of Yb/P/Al Codoped Double-clad Fibers

作　　者：冯高锋 杨军勇 卢卫民 葛锡良 刘伟[2] 陈滔[2] 姜培培[2] 沈永行[2] 

机构地区：[1]富通集团有限公司,浙江富阳311422 [2]浙江大学光电信息工程学系现代光学仪器国家重点实验室,杭州310027

出　　处：《光子学报》2013年第5期526-530,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61078015);国家重点基础研究发展计划(No.2011CD311803)资助

摘　　要：采用改进化学汽相沉积结合溶液掺杂法制备了Yb/P/Al共掺的石英光纤预制棒,通过光纤芯层的组份和制备工艺的优化,实现了Yb3+的高浓度掺杂和均匀掺杂.预制棒芯层Yb2O3掺杂浓度达到～4wt.%,Yb3+在1 080nm处荧光寿命为1 780μs.成功拉制出内包层截面形状为八边形的双包层光纤,纤芯直径为7.5μm,包层吸收系数达到～5dB/m@976nm.利用拉制的掺镱双包层光纤开展了全光纤结构的掺镱光纤激光器性能测试实验,实现了5.15 W的激光输出,斜率效率达到76%.Yb/P/Al codoped silica glass preforms are fabricated by MCVD process combined with the solution doping technique.Highly and homogeneously doping of Yb3+ is realized by optimization of the core composition and fabrication process.The Yb2O3 concentration in preform core is up to ~4 wt.% and Yb3+ fluorescence lifetime at 1080nm reaches 1 780 μs.Double-clad fibers with octagonal inner cladding are successfully drawn from the preform,the fiber core diameter is 7.5 μm and the clad absorption coefficicent is up to ~5 dB/m@976 nm.The operation of the cladding pumped all-fiber laser is demonstrated using Yb-doped double-clad fibers.Fiber lasers with output power of 5.15 W and slope efficiency of 76% are obtained.

关 键 词：YB P Al共掺 双包层光纤 荧光寿命 包层吸收系数 斜率效率 

分 类 号：TN244[电子电信—物理电子学]