Systematic development of the electric discharge oxygen-iodine laser

David L. Carroll, Gabriel F. Benavides, Joseph W. Zimmerman, Brian S. Woodard, Andrew D. Palla, Joseph T. Verdeyen, Wayne C. Solomon

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Systematic experiments have led to continued improvements in the hybrid Electric Oxygen-Iodine Laser (ElectricOIL) system that significantly increased the discharge performance, supersonic cavity gain, and laser power output. Experimental investigations of radio-frequency (rf) and pulser-sustainer (ps) discharges in O2/He/NO mixtures in the pressure range of 10-50 Torr and power range of 0.1-2.0 kW have shown that O2(a1Δ) production is a strong function of geometry, pressure and diluent ratio. In our investigations, transverse rf discharges always resulted in higher performance (by all metrics) than did the ps discharges tested. Results with both molecular iodine injection and partially pre-dissociated iodine are presented. A gain of 0.17% cm-1 was measured with a corresponding outcoupled power of 12.3 W (with a 5 cm cavity). Modeling with the BLAZE-V model is in good agreement with discharge and gain data, but significantly overpredicts laser power. This modeling result has led to an interesting investigation of power extraction questions for the ElectricOIL system; these studies include measurements of gain recovery downstream from the laser cavity and estimates of the role that diffractive losses play in our small cavity with high mirror reflectivities.

Original languageEnglish (US)
Title of host publicationXVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
StatePublished - 2009
EventXVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Lisboa, Portugal
Duration: Sep 15 2008Sep 19 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceXVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers


  • DOIL
  • EOIL
  • ElectricOIL
  • Hybrid electric discharge oxygen-iodine laser
  • Singlet oxygen

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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