Abstract

Concentration of the active atom as well as type and concentration of sensitizers can have a significant impact on the performance of a multiply doped Ho:YAG laser. Moreover, the temperature dependent performance depends on the concentrations of the various constituents of the laser rod. Performance of three laser rods, two sensitized with Tm and Cr and the third sensitized with Tm and Er, was measured as a function of temperature. Measured threshold correlates well with temperature dependent occupation factors while slope efficiency data correlates well with an up conversion process.

© 1989 Optical Society of America

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