Portland State University. Department of Electrical Engineering
Lee W. Casperson
Term of Graduation
Date of Publication
Master of Science (M.S.) in Electrical Engineering
Carbon dioxide lasers, Optical wave guides
1 online resource (2, vii, 67 pages)
A novel design for a DC excited cw CO2 metal waveguide laser has been developed in which a slotted hollow-cathode in a transverse discharge also doubles as a metal waveguide. This design has been implemented in a compact design that produces up to 1 watt of cw, 10.6 μm radiation. The discharge characteristics, laser gain and laser output has been studied as functions of various discharge parameters. The advantages of the new transverse discharge of the slotted hollow cathode geometry include low voltage, positive impedence and high optical gain. Overall efficiency is comparable with those of conventional longitudinal CO2 lasers. The output laser modes were very clean low order Gaussian modes.
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Al-Mashaabi, Fahad Saleh, "DC-excited cw CO₂ Metal Waveguide Laser" (1988). Dissertations and Theses. Paper 3756.