Li Fang-Qin et al 2009 Chinese Phys. Lett. 26 114206 doi:10.1088/0256-307X/26/11/114206
Li Fang-Qin1,3, Zhang Xiao-Fu1,3, Zong Nan1,3, Yang Jing2,3, Peng Qin-Jun2, Cui Da-Fu2 and Xu Zu-Yan1,2
Show affiliationsA high-efficiency high-power Nd:YAG laser under 885nm laser diode (LD) pumping is demonstrated. The laser crystal is carefully designed, and the overlapping between the pump modes and the laser modes is optimized. The maximum output power at 1064 nm is 87W under the absorbed pump power 127.7W, corresponding to a slope efficiency of 72.4% and an optical-optical efficiency of 68.1%. The optical-optical efficiency is 58.4% for the pump power emitted directly from the LD. To our best knowledge, this is the maximal optical-optical conversion efficiency obtained for the LD end-pumped Nd:YAG lasers so far.
42.60.By Design of specific laser systems
42.60.Lh Efficiency, stability, gain, and other operational parameters
42.60.Jf Beam characteristics: profile, intensity, and power; spatial pattern formation
42.55.Rz Doped-insulator lasers and other solid state lasers
Issue 11 (November 2009)
Received 29 July 2009
Li Fang-Qin et al 2009 Chinese Phys. Lett. 26 114206
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