RF-excited CO.sub.2 waveguide laser with extended tuning range

Details RF-excited CO.sub.2 waveguide laser with extended tuning range RF-excited CO.sub.2 waveguide laser with extended tuning range

1985-10-10

1987-06-30

Wan, Gene

Coherent light generators

Particular active media

Gas

372 20, H01S 322, H01S 310

Patent

active

046776354

ABSTRACT:
A high pressure CO.sub.2 laser waveguide having an extended tuning range. The laser cavity is bounded by a first partially reflecting member and a second partially reflecting member, the second member comprising a reflecting mirror and a diffraction grating member used in the Littrow configuration, the grating being positioned outside the laser cavity and spaced from the second reflecting mirror a predetermined distance. The combination of the mirror and grating provides an effective grating reflectivity which is sufficient to extend the tuning range of the laser to a value not previously available.

REFERENCES:
patent: 4122412 (1978-10-01), Hughes
patent: 4490021 (1984-12-01), Moya

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