Pulsed gain measurements on CO(2) lasers.
Houck, Timothy Lee
Collins, Daniel J.
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An efficient procedure for determining the operational potential of a laser system is the experimental measurement of gain. Two laser systems, a flowing CO₂-N₂-He laser and a chemical CO₂-HN₃, laser, were studied using a pulsed gain measurement technique. The experimental investigation indicated that the flowing CO₂-N₂ -He laser system could produce lasing action and that the saturation parameter was 15 watts/cm². The experimental results for the chemical laser show a gain of approximately 8% per meter and agree qualitatively with a computer model of the CO₂-HN₃ laser. However, difficulties in obtaining consistent results, which were attributed to saturation of the lasing medium by the reference signal, and a low signal-to- noise ratio prevented any final conclusion. Further experimental investigation of the CO₂-HN₃, laser will be necessary to determine the full potential of the laser system.
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