A diode side-pumped YAG/Nd : YAG/YAG composite crystal laser

作者:Kang, H.*; Zhang, H.; Wang, D.; Huang, L.; Yan, P.; Liu, Q.; Gong, M.
来源:Laser Physics, 2008, 18(8): 947-950.
DOI:10.1134/S1054660X08080033

摘要

A diode-bar side-pumped YAG/Nd:YAG/YAG composite crystal laser is presented. A maximum output power of 18.4 W at 1.064 mu m with a slop efficiency of 57% and an optical-optical conversion efficiency of 46% was obtained for a pump power of 40 W. Compared with a side-pumped conventional crystal laser in the same experimental conditions, the side-pumped composite crystal laser improved the optical-to-optical conversion efficiency by 12%. Experimental results indicate that a composite crystal can depress the thermal effects effectively and improve the optical-to-optical conversion efficiency easily in the diode side-pumped lasers. The composite crystal has great potential in high-power diode side-pumped lasers.