Measurements of heating and energy storage in diode-pumped Nd:YAG

Author

Chen, T.S. ; Anderson, V.L. ; Kahan, O.

Author_Institution

Hughes Aircraft Co., El Segundo, CA, USA

Volume

26

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

6

Lastpage

8

Abstract

Two experiments were carried out to measure the stored energy and heat deposited in the laser medium and to determine the heat parameter χ, defined as the heat deposited per unit of stored energy. The stored energy was calculated from small-signal gain measurements. The heat deposition was calculated from interferometric measurements of the thermally induced optical path length changes of the laser rod under test. χ is to be 1.1 in a 200-μs pump pulse, about one-third of the value obtained for flashpumped Nd:YAG. Without fluorescence decay, χ is 0.7

Keywords

laser variables measurement; light interferometry; neodymium; optical pumping; solid lasers; thermo-optical effects; 200 mus; YAG:Nd; YAl5O12:Nd; diode-pumped; energy storage; energy storage measurements; flashpumped; fluorescence decay; heat deposited; heat parameter; heating storage measurements; interferometric measurements; laser medium; laser rod; pump pulse; small-signal gain measurements; stored energy; thermally induced optical path length changes; Diodes; Energy measurement; Energy storage; Gain measurement; Heat pumps; Heating; Length measurement; Optical interferometry; Pulse measurements; Pulsed laser deposition;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.44910

Filename

44910