A prototype solid-state, multispectral hybrid laser has been designed and tested. The laser provides simultaneous outputs at several wavelengths. The hybrid-laser concept is based on the efficient use of flash-lamp-pump energy distributed between two complementary lasing materials, Nd:YAG and Cr:LiSAF, that share the same pump cavity. The prototype <i>Q</i>-switched hybrid laser provides dual-fundamental-wavelength output at 850 and 1064 nm as well as frequency-doubled output at 532 nm. The laser achieved 3.6% slope efficiency (combined) in free-running operation and 2.4% when <i>Q</i> switched. Higher efficiencies can be obtained with improvements in laser crystal quality and pump cavity configuration.
© 1999 Optical Society of America
Phillip P. Lin, Manvel A. Andriasyan, Barry A. Swartz, Ned Witherspoon, and John H. Holloway, "Multiwavelength Output from a Nd:YAG /Cr:LiSAF Hybrid Laser," Appl. Opt. 38, 1767-1771 (1999)