Title :
Further investigations of a 2-μm Tm:YVO4 laser
Author :
Hauglie-Hanssen, Christian ; Djeu, N.
Author_Institution :
Dept. of Phys., Univ. of South Florida, Tampa, FL, USA
fDate :
2/1/1994 12:00:00 AM
Abstract :
The performance of a Tm:YVO4 laser has been optimized by varying the thickness of the laser crystal and the reflectivity of the output coupler. This has led to the measurement of a slope efficiency of 48% for the laser output. Formulas describing the saturation of the pump and the upper laser level in the presence of up-conversion loss have been developed. Fitting of the experimental data to the saturation curves calculated using these formulas has yielded an up-conversion rate constant from 3F4 to 3 H5 of 2·10-18 cm3 s-1
Keywords :
optical pumping; optical saturation; reflectivity; solid lasers; thulium; yttrium compounds; 48 percent; Tm:YVO4 laser; YVO4:Tm; laser crystal thickness; laser output; output coupler; pump saturation; reflectivity; saturation curves; slope efficiency; up-conversion loss; up-conversion rate constant; upper laser level saturation; Absorption; Crystals; Curve fitting; Laser excitation; Laser modes; Laser transitions; Laser tuning; Optical coupling; Power lasers; Pump lasers; Reflectivity;
Journal_Title :
Quantum Electronics, IEEE Journal of
