Coherent light generators – Particular beam control device – Mode discrimination
Patent
1988-07-05
1990-08-21
Sikes, William L.
Coherent light generators
Particular beam control device
Mode discrimination
372 20, 372 99, 372103, 372107, H01S 3098
Patent
active
049512854
ABSTRACT:
A laser comprising a first mirror having a shape. The shape is generally spherical for typical lasers with the shape of the mirror being defined by the radius of curvature of a reflective surface on the mirror. A second mirror is provided mounted with the first to define a laser cavity. The cross-sectional sizes of the modes of oscillation within the laser cavity are defined by the shape of the first mirror. An aperture at a given location having a fixed cross-sectional size is mounted with the laser cavity. Alternatively, a laser bore which forms an effective aperture at a given location is used. A means is mounted with the first mirror for adjusting the shape of the first mirror so that the cross-sectional size of a selected mode at the given location matches the cross-sectional size of the aperture.
REFERENCES:
patent: 3573656 (1971-04-01), Marcatili
patent: 3731991 (1973-05-01), Arnold
patent: 3839684 (1974-10-01), Matsuko et al.
Raymond J. Roark, Formulas for Stress and Strain, Fourth Edition, McGraw-Hill, Inc., 1965.
Artusy Troy M.
Cole John L.
Petersen Alan B.
Sheng Shinan-Chur S.
Wright David
Epps Georgia Y.
Sikes William L.
Spectra-Physics
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