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February 1, 1994Japanese Journal of Applied Physics

Room-Temperature Operation of Fast-Axial-Flow Radio-Frequency-Discharge-Excited CO Laser

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Authors

KSKouki ShimizuSSShunichi Sato Shunichi Sato

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Overview

Experimental study demonstrates 163 W steady-state output in an RF-excited carbon monoxide laser at 289 K, indicating efficient room-temperature operation without costly xenon additives.

Key Points

  • To achieve and evaluate steady-state room-temperature operation of a fast-axial-flow radio-frequency-discharge-excited carbon monoxide laser using a xenon-free gas mixture.
  • Constructed a fast-axial-flow carbon monoxide (CO) laser excited by radio-frequency (RF) discharge within a 1.9-cm-diameter, 30-cm-long discharge tube.
  • Supplied a xenon-free, nitrogen-rich gas mixture (CO/N2/He/O2 ratio of 11.5/26.4/62.1/0.23) across an entrance gas temperature range of 289 K to 313 K.
  • Achieved a steady-state laser output of 163 W at an entrance gas temperature of 289 K.
  • Demonstrated an electrical conversion efficiency of 8.2% under room-temperature conditions.
  • Observed an output power decrease of 0.94 W/K (0.011 W/K per cm³ of discharge volume) over the 289–313 K temperature range.

Cite This Study

Shimizu et al. (1994) studied this question.

synapsesocial.com/papers/6aa2dc4f48edd87d0424131ahttps://doi.org/10.1143/jjap.33.l180
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