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Conferences > ASSL > 1991 > MIL > MIL4

Upconversion Studies of Flashlamp-Pumped Cr,Tm,Ho:YAG

S. R. Bowman, M. J. Winings, R. C. Y. Auyeung, J. E. Tucker, S. Searles, and B. J. Feldman

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Abstract

We report measurements on flashlamp pumped YAG crystals doped with chromium, thulium and holmium. Near room temperature laser operation on the 2.1 μm holmium transitions was characterized using a frequency selective resonator. Small signal gain and stored energy lifetimes were analyzed to determine the strength and dependence of loss mechanisms. Analysis of thermal lensing experiments demonstrated a high degree of excess heat generation in this material.

© 1991 Optical Society of America

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