Spatial and recovery measurements of gain in an electric oxygeniodine laser

G. F. Benavides, J. W. Zimmerman, B. S. Woodard, A. D. Palla, D. L. Carroll, J. T. Verdeyen, W. C. Solomon

Research output: Contribution to journalConference article

Abstract

Recent investigations of an Electric Oxygen-Iodine Laser system have shown that computational modeling overpredicts the laser power output measured in experiments for similar gain conditions. To help resolve this discrepancy, detailed 2-axis mapping of gain and gain recovery measurements downstream of an operating laser cavity were performed. Modeling and analyses of the gain recovery experiments indicate that when the pumping rate of I( 2P 1/2) by O 2(a 1Δ) is reduced by an effective factor of approximately 4 as a result of an unknown competing reaction, the calculations are well matched to the experimental gain recovery measurements. The agreement between the measured and modeled laser power extraction also significantly improves when the reduced effective pumping rate is used. The results suggest that there may be a competing reaction that effectively reduces the forward pumping rate as compared to the classical chemical oxygen-iodine laser kinetics rates. Understanding of this kinetic process should enable us to accommodate or eliminate its impact on Electric OIL performance.

Original languageEnglish (US)
Article number719603
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7196
DOIs
StatePublished - May 25 2009
EventHigh Energy/Average Power Lasers and Intense Beam Applications III - San Jose, CA, United States
Duration: Jan 26 2009Jan 27 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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