Coherent light generators – Particular resonant cavity – Unstable resonator
Patent
1989-08-30
1990-07-03
Gonzalez, Frank
Coherent light generators
Particular resonant cavity
Unstable resonator
372 35, 372 64, 372 83, 372 93, 372 99, H01S 308
Patent
active
049397389
ABSTRACT:
In order to improve an electrically excited, diffusion-cooled highpower laser comprising two wall surfaces slightly spaced from one another and forming an optical waveguide, the width of the wall surfaces being a multiple of the space between them and the surfaces enclosing between them a flow-free discharge chamber, and also comprising an optical resonator having resonator mirrors disposed at both ends of said waveguide, such that his results in a laser beam which can be well focused, it is suggested that the resonator be an optically unstable resonator including a beam path extending lengthwise of a resonator axis and having an expansion transverse to the resonator axis extending as far as at least one exiting laser beam and that the transverse expansion extend transversely to a longitudinal direction of the waveguide and approximately parallel to the wall surfaces.
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Deutsche Forschung -und Versuchsanstalt
Gonzalez Frank
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