Evaluation of the thermal focal length produced in a repetitively pulsed solid-state laser
Abstract
An approximate expression for the focal length of the thermal lens produced in a repetitively pulsed laser rod is presented. Numerical evaluations reveal relations between thermal focusing and the rod radius, cooling conditions, pulse repetition rate, and nonuniformity of pumping. The aberration produced under different operating conditions is also discussed. A critical rod radius is identified for which the thermal lens effect is most sensitive to cooling and nonuniformity of pumping.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- May 1983
- Bibcode:
- 1983JAP....54.2214H
- Keywords:
-
- Focusing;
- Laser Stability;
- Pulsed Lasers;
- Solid State Lasers;
- Thermal Blooming;
- Cooling;
- Laser Pumping;
- Temperature Distribution;
- Lasers and Masers