High-Efficiency High-Power Nd:YAG Laser under 885nm Laser Diode Pumping
LI Fang-Qin1,3, ZHANG Xiao-Fu1,3, ZONG Nan1,3, YANG Jing2,3, PENG Qin-Jun2, CUI Da-Fu2, XU Zu-Yan1,2
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902RCLPT, Key Lab of Functional Crystal and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 1001903Graduate School of the Chinese Academy of Sciences, Beijing 100190
High-Efficiency High-Power Nd:YAG Laser under 885nm Laser Diode Pumping
LI Fang-Qin1,3, ZHANG Xiao-Fu1,3, ZONG Nan1,3, YANG Jing2,3, PENG Qin-Jun2, CUI Da-Fu2, XU Zu-Yan1,2
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902RCLPT, Key Lab of Functional Crystal and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 1001903Graduate School of the Chinese Academy of Sciences, Beijing 100190
摘要A 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 1064nm 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.
Abstract：A 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 1064nm 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.
[1] Brown D 1997 IEEE J. Quantum Electron. 33 861 [2] Bruesselbach H W et al 1997 IEEE J. Sel. Top. QuantumElectron. 3 71 [3] Brown D 1998 IEEE J. Quantum Electron. 34 560 [4] Lavi R et al 1999 Appl. Opt. 38 7382 [5] Lavi R and Jackel S 2000 Appl. Opt. 39 3093 [6] Huang Z Y et al 2005 J. Opt. Soc. Am. B 222564 [7] McDonagh L and Wallenstein R 2006 Opt. Lett. 31 3297 [8] McDonagh L and Wallenstein R 2007 Opt. Lett. 32 802 [9] Li X D, Yu X et al 2008 Appl. Phys. B 92 199 [10] Li X D, Yu X et al 2009 Opt. Express 17 12869 [11] Lupei V, Pavel N and Taira T 2001 Opt. Lett. 26 1678 [12] Lupei V and Pavel N 2003 Appl. Phys. Lett. 833653 [13] Xu C W, Wei Z Y et al 2009 Chin. Phys. Lett. 26 014213 [14] Zong N, Zhang X F, Ma Q L et al 2009 Chin. Phys.Lett. 26 054211 [15] Lavi R, Tal A, Lebiush E, Tzuk Y and Goldring S 2001 Opt. Commun. 195 427 [16] Frede M, Wilhelm R and Kracht D 2006 Opt. Lett. 31 3618 [17] Walukiewicz W, Lagowski L, Jastrzebski L, LichtensteigerM and Gatos H C 1979 J. Appl. Phys. 50 899
2009, Vol. 26 
