An efficient 2 μm in-band pumped Ho:YAG laser was demonstrated. The resonator involves two Ho:YAG crystals, each of which was dual-end-pumped by two orthogonally polarized diode-pumped Tm:YLF lasers. The maximum continuous wave output power of 103 W was achieved, corresponding to a slope efficiency of 67.8% with respect to the incident pump power and an optical-to-optical conversion efficiency of 63.5%. Under -switched mode, we obtained 101 W laser output at 30 kHz, corresponding to a slope efficiency of 66.2%. The beam quality or factor was found to be less than 2.
© 2012 Optical Society of AmericaFull Article | PDF Article
D. Y. Shen, J. K. Sahu, and W. A. Clarkson
Opt. Lett. 31(6) 754-756 (2006)
J. W. Kim, D. Y. Shen, J. K. Sahu, and W. A. Clarkson
Opt. Express 16(8) 5807-5812 (2008)
Xiao-Ming Duan, Bao-Quan Yao, Xiao-Tao Yang, Lin-Jun Li, Tian-Heng Wang, You-Lun Ju, Yue-Zhu Wang, Guang-Jun Zhao, and Qin Dong
Opt. Express 17(6) 4427-4432 (2009)