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Proceedings Paper

Experimental and modeling study of Er:YAG kinetics
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Paper Abstract

Erbium doped YAG is an intriguing laser material which lases directly at 1645nm when pumped at either 1473nm or 1532nm, all of which are in the eye-safe band. However, a laser made from this material is not particularly straightforward to design. Er:YAG is a quasi-three-level system, which leads to strong temperature dependence. Perhaps more importantly, a strong up-conversion process, which is dopant concentration dependent, effectively produces a pump intensity dependence in the saturation intensity and other laser parameters. We present a detailed study of the absorption coefficient and the gain as a function of the pump intensity, dopant concentration and crystal temperature. The results of this study will allow us to optimally design the laser.

Paper Details

Date Published: 10 May 2007
PDF: 9 pages
Proc. SPIE 6552, Laser Source Technology for Defense and Security III, 65520J (10 May 2007); doi: 10.1117/12.720524
Show Author Affiliations
Daniel O. Hogenboom, Textron Defense Systems Corp. (United States)
Hsian P. Chou, Textron Defense Systems Corp. (United States)


Published in SPIE Proceedings Vol. 6552:
Laser Source Technology for Defense and Security III
Gary L. Wood; Mark A. Dubinskii, Editor(s)

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