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- W2163344847 abstract "A compact sealed pulsed CO <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</inf> TEA laser with an operational life exceeding 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>6</sup> pulses has been developed. It provides single-mode output pulses of 1.0-MW peak power in 50-ns full width at half maximum (FWHM) and total energy 110 mJ in 2 μs. The output beam emerges from an 8.5-mm-diam aperture with a full-angle divergence of 3.5 mrad, which is less than 1.5 times the diffraction limited value. With a different optical resonator system, the corresponding multi-mode output exceeds 1.4 MW in 80 ns with a total energy of 300-500 mJ delivered in 4 μs and with a beam divergence of about 10 mrad. These output levels, corresponding to 15-25 J/l, are obtained for a pulse repetition frequency of 2 Hz and are maintained after initial conditioning, even in lasers tested to <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2 times 10^{6}</tex> pulses. Hitherto, prolonged sealed operation was not possible because the glow discharge degraded into arcs. This has been overcome in the present device by the addition of small quantities of carbon monoxide and hydrogen to the basic CO <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</inf> -N <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</inf> -He-laser gas mixture before seal-off." @default.
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- W2163344847 date "1975-09-01" @default.
- W2163344847 modified "2023-09-27" @default.
- W2163344847 title "A compact sealed pulsed CO<sub>2</sub>TEA laser" @default.
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- W2163344847 doi "https://doi.org/10.1109/jqe.1975.1068842" @default.
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