Waveguide configuration

US4961201A · kind A · utility

Assignee

• Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventor

• Hans Opower · Krailling, DE

Key dates

• Filing date: Aug 24, 1989
• Grant date: Oct 2, 1990
• Expiry date: Aug 24, 2009

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/0975
• WIPO field: Optics
• WIPO sector: Instruments

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.