Folded waveguide laser

Details Folded waveguide laser Folded waveguide laser

1990-12-28

1992-03-17

Sikes, William L.

Coherent light generators

Particular resonant cavity

Unstable resonator

372 93, 372 64, H01S 308

Patent

active

050974793

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.

REFERENCES:
patent: 3772611 (1973-11-01), Smith
patent: 3970963 (1976-07-01), Chester
patent: 3982204 (1976-09-01), Andringa
patent: 4438514 (1984-03-01), Chenausky et al.
patent: 4939738 (1990-07-01), Opower
IEEE Journal of Quantum Electronics, "Transverse Modes of Plane Mirror Waveguides", Christopher Hill, vol. 24, No. 9, Sep. 1988, pp. 1936-1946.
"Headed in the Right Direction", Fred Aronowitz, Photonics Spectra, Sep. 1988, pp. 135-140.

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