A Tm-Bi Co-Doped Fiber Laser with Dual Pumping Operation  

作　　者：N.Saidin S.W.Harun S.S.A.Damanhuri S.M.M.Ali H.Ahmad A.Halder M.C.Paul S.Das M.Pal S.K.Bhadra 

机构地区：[1]Department of Electrical Engineering,Faculty of Engineering,University of Malaya,50603 Kuala Lumpur,Malaysia [2]Photonics Research Centre,University of Malaya,50603 Kuala Lumpur,Malaysia [3]Fiber Optics and Photonics Division,CSIR-Central Glass&Ceramic Research Institute,Kolkata,India

出　　处：《Chinese Physics Letters》2013年第3期71-74,共4页中国物理快报（英文版）

基　　金：Supported by the University of Malaya PPP under Grant No PV033/2011B,the Department of Science and Technology of the Government of India,the Director and the Staff Members of the Central Glass and Ceramic Research Institute(CGCRI),the Council of Scientific and Industrial Research,India,for awarding a CSIR-research fellowship,and the University of Malaya under the HIR Grant No D000009-16001.

摘　　要：We demonstrate an efficient fiber laser operating at 1901.6 nm using a newly developed thulium bismuth co-doped fiber(TBF)with dual pumping at 792 nm and 1552 nm.The fiber was fabricated using modified chemical vapor deposition and solution doping processes.The dopant concentrations(wt%)and compositions inside the core are 0.15 Bi_(2)O_(3),0.3 Tm_(2)O_(3),1.0 Al_(2)O_(3) and 12.0 GeO_(2).The TBF laser operates at 1901.6 nm with a lasing efficiency of 33.2%and pump power threshold of 85 mW using a 2-m-long TBF in a linear cavity with two fiber Bragg gratings(FBGs).The high efficiency is attributed to the use of additional 1552 nm pump to complement 792 nm pumping.The maximum output power of 225 mW is achieved at the pump power of 820 mW with the optimum length of 2 m.

关 键 词：PUMP FIBER PUMPING 

分 类 号：TN2[电子电信—物理电子学]