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High-average power-pulsed performance of a multikilowatt PIE laser

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5 Author(s)
Nikumb, S.K. ; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada ; Seguin, H.J.J. ; Seguin, V.A. ; Willis, R.J.
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The application of a burst-mode pulsed discharge technique to a large-volume, multikilowatt, PIE (photo-initiated, impulse-enhanced, electrically excited) carbon dioxide laser is described. A factor of two enhancement in average output power, up to the 10 kW level, was obtained using a burst duration of 1.2 ms and a repetition rate of 500 burst/s. The small signal-gain increased to essentially double that of the normal continuous-wave value. Gain profile information, together with details of the laser's power performance, as a function of various discharge parameters, is illustrated. These data clearly document the versatility of this unique and cost-effective burst-mode laser excitation process

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Quantum Electronics, IEEE Journal of  (Volume:25 ,  Issue: 7 )