Abstract
This paper describes a 1 m-long CW HCN discharge laser with a hollow dielectric rectangular discharge tube of 5×20 cm2 cross-section. For optimum working conditions, the characteristics of the amplifying medium have been made constant over the cross-section, by using an additional magnetic field. Then, the unsaturated gain for the 337 μm line is 6.8% m−1. It is shown to be dependent on the smaller dimension of the cross-section rather than on the other dimension. By using the tube as a waveguide, laser output power of 1 Watt might be obtained with a discharge length of 4 m, instead of the 12m-long discharge required to get the same output power from a cylindrical waveguide laser.
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Bruneau, J.L., Belland, P., Lebertre, T. et al. CW HCN laser gain in a hollow dielectric rectangular cross-section discharge tube. Appl. Phys. 19, 359–361 (1979). https://doi.org/10.1007/BF00900481
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DOI: https://doi.org/10.1007/BF00900481