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Proceedings Paper

Gain measurements in a non-self-sustained electric discharge pumped oxygen-iodine laser cavity
Author(s): A. Hicks; K. Fredrickson; S. Tirupathi; Y. G. Utkin; W. R. Lempert; J. W. Rich; I. V. Adamovich; K. L. Galbally-Kinney; W. J. Kessler; W. T. Rawlins; P. A. Mulhall; S. J. Davis
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Paper Abstract

The paper presents results of singlet delta oxygen yield (SDO) measurements in a high-pressure, non-self-sustained discharge and small signal gain measurements on the 1315 nm iodine atom transition in the M=3 supersonic cavity downstream of the discharge. The results demonstrate operation of a stable pulser-sustainer discharge in O2-He flows at pressures of up to 120 torr and discharge powers of up to 2.2 kW. The reduced electric field in the DC sustainer discharge ranges from 6 to 12 Td. SDO yield in the discharge is up to 5.0-5.7% at the discharge temperatures of 400-420 K. The results suggest that SDO yield exceeds the gain threshold yield at the M=3 cavity temperature by up to a factor of three, which is confirmed by gain measurements. The highest gain measured in the supersonic cavity is 0.01%/cm.

Paper Details

Date Published: 26 April 2007
PDF: 6 pages
Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63461V (26 April 2007); doi: 10.1117/12.738860
Show Author Affiliations
A. Hicks, The Ohio State Univ. (United States)
K. Fredrickson, The Ohio State Univ. (United States)
S. Tirupathi, The Ohio State Univ. (United States)
Y. G. Utkin, The Ohio State Univ. (United States)
W. R. Lempert, The Ohio State Univ. (United States)
J. W. Rich, The Ohio State Univ. (United States)
I. V. Adamovich, The Ohio State Univ. (United States)
K. L. Galbally-Kinney, Physical Sciences Inc. (United States)
W. J. Kessler, Physical Sciences Inc. (United States)
W. T. Rawlins, Physical Sciences Inc. (United States)
P. A. Mulhall, Physical Sciences Inc. (United States)
S. J. Davis, Physical Sciences Inc. (United States)


Published in SPIE Proceedings Vol. 6346:
XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers

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