Folded waveguide laser

US5097479A · kind A · utility

Assignee

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

Inventor

• Hans Opower · Krailling, DE

Key dates

• Filing date: Dec 28, 1990
• Grant date: Mar 17, 1992
• Expiry date: Dec 28, 2010

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/0835
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In order to so improve a high-frequency-excited, diffusion-cooled waveguide laser comprising a folded, unstable laser resonator with a first resonator axis branch and a second resonator axis branch, a folded, optical waveguide with a first waveguide branch and a second waveguide branch penetrated by the first and the second resonator axis branch, respectively, in their longitudinal direction, and each having two spaced, optical waveguide surfaces, and at least one reflection element with a reflection surface coupling the waveguide branches with one another, that as low reflection losses as possible occur with the folding and that the laser is as compact as possible, it is proposed that the two waveguide branches be coupled with one another at a first end by a single, first reflection surface, each with single beam reflection thereat, in that the two resonator axis branches intersect at their point of impact on the first reflection surface and that the two waveguide branches be curved in the direction towards one another.