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Further investigations of a 2-μm Tm:YVO4 laser

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2 Author(s)
Hauglie-Hanssen, C. ; Dept. of Phys., Univ. of South Florida, Tampa, FL, USA ; Djeu, N.

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

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Quantum Electronics, IEEE Journal of  (Volume:30 ,  Issue: 2 )