Abstract

An analytical study of temperature distribution in finite end-pumped laser rods has been extended to include the case of rods that are pumped by a series of short pulses. Each pump pulse is assumed to be a collimated Gaussian beam in spatial distribution and is attenuated as it propagates along the direction of the axis of symmetry of the laser rod. The heat deposition is assumed to be instantaneous and is spatially nonuniform. The rod is assumed to be cooled actively or passively on all its sides. Calculations on the time dependence and spatial distribution of temperature rise in actively cooled and repetitively pulsed end-pumped Nd:YAG and Ti:a1203 laser rods are provided.

© 1989 Optical Society of America