150-W Tm3+-Doped Fiber Lasers With Different Cooling Techniques and Output Couplings
TANG Yu-Long1, XU Jian-Qiu1,2, CHEN Wei3,4, LI Shi-Yu4
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 2Department of Physics, Shanghai Jiaotong University, Shanghai 200240 3State Key Lab of Optical Communication Technology and Networks, Wuhan 430074 4Fiberhome Telecommunication Tech. Co. Ltd, Wuhan 430074
150-W Tm3+-Doped Fiber Lasers With Different Cooling Techniques and Output Couplings
TANG Yu-Long1, XU Jian-Qiu1,2, CHEN Wei3,4, LI Shi-Yu4
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 2Department of Physics, Shanghai Jiaotong University, Shanghai 200240 3State Key Lab of Optical Communication Technology and Networks, Wuhan 430074 4Fiberhome Telecommunication Tech. Co. Ltd, Wuhan 430074
摘要A home-made double-clad Tm3+−doped silica fiber laser with over 150-W output power is reported. Pumped with a diode bar at 793 nm, the fiber laser is operated at 2.04 μm with a slope efficiency of 56.3%. A quantum efficiency of >140% is achieved owing to the efficient cross−relaxation process in heavily Tm3+-doped fibers. By using different fiber-cooling techniques, the slope efficiency shows a deviation over 10%. The influence of output coupling on the laser characteristics is also investigated.
Abstract：A home-made double-clad Tm3+−doped silica fiber laser with over 150-W output power is reported. Pumped with a diode bar at 793 nm, the fiber laser is operated at 2.04 μm with a slope efficiency of 56.3%. A quantum efficiency of >140% is achieved owing to the efficient cross−relaxation process in heavily Tm3+-doped fibers. By using different fiber-cooling techniques, the slope efficiency shows a deviation over 10%. The influence of output coupling on the laser characteristics is also investigated.
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2010, Vol. 27 
