4 April 1997 Parametric investigation of the small signal gain in a large aperture e-beam-controlled CO2 laser
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Proceedings Volume 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (1997) https://doi.org/10.1117/12.270219
Event: XI International Symposium on Gas Flow and Chemical Lasers and High Power Laser Conference, 1996, Edinburgh, United Kingdom
Abstract
In an e-beam controlled carbon-dioxide laser unit the spatial, temporal and spectral properties of the small-signal gain were investigated in a single pass geometry. A smooth spatial distribution was found with peak values of 2.9%/cm near the cathode at 112.5 J/(1 bar). No reduction in the gain value was monitored up to repetition rates of 60 Hz when circulating the laser gas with a gas flow velocity of 100 m/s. A HeNe laser probe beam, being collinear to the carbon-dioxide laser beam, was used to monitor shock waves or mechanical vibrations by measuring its deflection. This investigation showed, that the small-signal gain measurements were not interfered by any disturbances.
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Wolfgang Riede, Wolfgang Riede, Wilhelm Mayerhofer, Wilhelm Mayerhofer, Thomas Hall, Thomas Hall, S. Walther, S. Walther, Guenther Renz, Guenther Renz, "Parametric investigation of the small signal gain in a large aperture e-beam-controlled CO2 laser", Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); doi: 10.1117/12.270219; https://doi.org/10.1117/12.270219
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