Fundamental Mode YAG:Nd Laser Analysis

Abstract

The condition that limits the volume that will sustain fundamental mode operation in a YAG:Nd laser has been determined. The relationship between the pump lamp power and fundamental mode power has been derived which correctly predicts the single mode power. The analysis incorporates the results of a computer analysis of the laser rod, which, among other things, computes the heat absorbed per unit volume and plots the isotherms for the interior of the rod. Recommendations for the design of high power, fundamental mode lasers are given.