Coherent light generators – Particular resonant cavity – Folded cavity
Patent
1989-08-24
1990-10-02
Davie, James W.
Coherent light generators
Particular resonant cavity
Folded cavity
372 64, H01S 308
Patent
active
049612018
ABSTRACT:
In order to improve a waveguide configuration for high-frequency-excited, diffusion-cooled gas laser system comprising a waveguide carrier with a cavity closed like a ring in an azimuthal direction in relation to a longitudinal axis and extending in the direction of said longitudinal axis, and a waveguide for guidance of a laser beam along an optical axis, the waveguide being arranged in the cavity and formed by waveguide wall surfaces disposed at a constant spacing from one another, the width of the waveguide wall surfaces transversely to the lengthwise extent of the waveguide in the direction of the optical axis being a multiple of their spacing from one another, and the waveguide wall surfaces enclosing a discharge space between them, such that with a waveguide geometry which is as expedient as possible, i.e., not too large a width, it is still easy to handle and can be operated in a single mode, it is proposed that the waveguide be arranged in the cavity such that its lengthwise extent includes an angle of.ltoreq.30 degrees with the azimuthal direction.
REFERENCES:
patent: 3379998 (1968-04-01), Soules et al.
patent: 4439860 (1984-03-01), Kurnit
patent: 4719639 (1988-01-01), Tulip
Elsa Garmire et al, "Flexible Infrared Waeguides for High-Power Transmission", IEEE Journal of Quantum Electronics, vol. QE-16, No. 1, Jan. 1980, pp. 23-32.
Davie James W.
Deutsche Forschungsanstalt fuer Luft- und Raumfahrt
Lipsitz Barry R.
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