Abstract
The efficient, low-threshold operation of a 946-nm Nd:YAG laser pumped by an injection-locked broad-area diode laser is reported. The implications of pump-beam quality for efficient, low-threshold operation, particularly with intrinsically inefficient transitions, are discussed in the context of previously published models. Results are presented showing that the M 2 = 1.3 pump beam of the injection-locked diode laser enabled a cw slope efficiency of 48% and a threshold of 52 mW to be attained. When Q-switched, 335 mW of pump power gave 27-ns, 5.2-μJ pulses. These were frequency doubled to obtain 19-ns, 1-μJ pulses at 473 nm. These results represent significant improvements over similar systems pumped by free-running broad-area diode lasers or arrays.
© 1998 Optical Society of America
Full Article | PDF ArticleMore Like This
Y. P. Huang, H. C. Liang, J. Y. Huang, K. W. Su, A. Li, Y. F. Chen, and K. F. Huang
Appl. Opt. 46(25) 6273-6276 (2007)
Junhua Hong, Bruce D. Sinclair, Wilson Sibbett, and Malcolm H. Dunn
Appl. Opt. 31(9) 1318-1321 (1992)
Stefan Spiekermann, Håkan Karlsson, and Fredrik Laurell
Appl. Opt. 40(12) 1979-1982 (2001)