In this paper, a highly efficient Ti:sapphire end-pumped 1 at.-% Nd:YAG ceramic laser that is comparable in efficiency with Nd:YAG single crystal lasers has been developed. Optical absorption and emission spectra for Nd:YAG ceramics have been measured. With 673-mW pumping, 295-mW laser output at 1064 nm has been obtained. The laser threshold is only 13 mW. Deducted the transmitted light, the corresponding optical-to-optical conversion efficiency is 58.4%. The lasing characteristics of Nd:YAG ceramic are nearly equal to those of Nd:YAG single crystal.
© 2005 Chinese Optics Letters
Yunfeng Qi, Qihong Lou, Haixia Ma, and Jingxing Dong, "Highly efficient Nd:YAG ceramic CW laser with 59.8% slope-efficiency," Chin. Opt. Lett. 3, 89-91 (2005)