Jc. Diettrich et al., Tunable high-repetition-rate visible solid-state lasers based on intracavity frequency doubling of Cr : forsterite, IEEE J Q EL, 35(11), 1999, pp. 1718-1723
High-repetition-rate solid-state lasers broadly tunable in the red-orange a
nd infrared spectral regions are reported. Wavelengths between 590 and 670
nm and between 1170 and 1360 nm have been generated by gain-switched Cr:for
sterite lasers incorporating intracavity frequency doubling in KTP. Broadba
nd, tuned, and narrow-band systems operating at repetition rates between 1
and 20 kHz have been developed. Maximum visible output power of 40 mW was a
chieved by frequency doubling of a narrow-band infrared laser, correspondin
g to a fundamental to second-harmonic conversion efficiency of more than 30
%.