Thermal transient effects in repetitively pulsed flashlamp-pumped yag:nd and yag:nd, lu laser material

Applied Optics
R F Hotz

Abstract

Measurements have been made of the change of the optical pathlength due tothermal transient effects of two laser rod materials: YAG:Nd and YAG:Nd, Lu. These optical distortion measurements were studied as a function of flashlamp input energy level, coolant temperature, and pulse repetition frequency. Experimental data were obtained by passing a collimated He-Ne probe beam through the flashlamp pumped laser rod and recording the detector output as a function of time. The data show a significant difference between YAG:Nd and Lu co-doped YAG:Nd with respect to thermal transient effects. Using existing theory, results of calculations that predict the thermal effects are also presented for comparison with the experimental observations.

References

Jul 1, 1969·Applied Optics·G Benedetti-Michelangeli, S Martellucci
Nov 1, 1970·Applied Optics·W Koechner

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