17 February 2010 Enhanced performance of an electric oxygen-iodine laser
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Abstract
Experiments and modeling have led to continued enhancements in the Electric Oxygen-Iodine Laser (ElectricOIL) system. This continuous wave (cw) laser operating on the 1315 nm transition of atomic iodine is pumped by the production of O2(a) in a radio-frequency (RF) discharge in an O2/He/NO gas mixture. New discharge geometries have led to improvements in O2(a) production and efficiency. A 95% enhancement in cw laser power was achieved via a 50% increase in gain length, flow rates, and discharge power. A further 87% increase in extracted laser power was obtained using a larger mode volume resonator. The gain has improved by more than 100-fold from the initial demonstration of 0.002% cm-1 to 0.26% cm-1, and similarly the outcoupled laser power has improved more than 500-fold from 0.16 W to 102 W.
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D. L. Carroll, G. F. Benavides, J. W. Zimmerman, B. S. Woodard, M. T. Day, A. D. Palla, J. T. Verdeyen, W. C. Solomon, "Enhanced performance of an electric oxygen-iodine laser", Proc. SPIE 7581, High Energy/Average Power Lasers and Intense Beam Applications IV, 758102 (17 February 2010); doi: 10.1117/12.845913; https://doi.org/10.1117/12.845913
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