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Optical Engineering

Simple method to calculate the radial energy and temperature distributions in diode-pumped solid-state laser rods
Author(s): Wenjie Xie; Siu Chung Tam; Yee Loy Lam
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Paper Abstract

The major limiting factor in scaling solid state laser average power is thermal heating. A simple and effective solution, which is used to obtain pump and temperature distributions in the laser rod using an approximate formula to calculate the absorption of the pump ray in the rod, is provided. The calculated data fit well with the experimental data, which are obtained from an IR camera. This analysis can provide valuable data for efficient coupling of pump source and subsequent correction of the thermal distortion inside the laser resonator. Most important, one can clearly observe temperature distribution in the rod and temperature difference between the center and edge of the rod with an IR camera, which benefits adjustment of the pump diodes.

Paper Details

Date Published: 1 August 2001
PDF: 5 pages
Opt. Eng. 40(8) doi: 10.1117/1.1386374
Published in: Optical Engineering Volume 40, Issue 8
Show Author Affiliations
Wenjie Xie, DSO National Labs. (United States)
Siu Chung Tam, DenseLight Semiconductors Pte Ltd (Singapore)
Yee Loy Lam, DenseLight Semiconductors Pte Ltd. (Singapore)

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