Abstract
We have recently shown the first good laser performance of a continuous wave Ar:He:Xe laser with RF excitation1. The laser can deliver a cw output power in excess of 1 W. This output comes mainly from two wavelengths2: 2.03 µm and 2.65 µm. A key parameter for laser-action is the gain. We measured the gain on these two wavelengths in a waveguide of dimensions 2 × 10 × 50 mm3, a gas mixture of Ar:He:Xe (60:40:0.5) and an excitation frequency of 112 MHz. The gas pressure was varied from 80 to 360 mbar and power deposition into the plasma is up to 400 W.
© 1996 IEEE
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