Optical: systems and elements – Optical amplifier – Particular pumping type
Patent
1997-12-03
1999-10-19
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Particular pumping type
359134, 372 71, 356153, H09S 308, H01S 3094
Patent
active
059698519
ABSTRACT:
An apparatus for maintaining an electromagnetic beam, namely a laser beam, aimed at a particular point in space and aligned with a unique propagation path. The apparatus includes one or more adjustable beam steerers located in the propagation path, and first and second spaced apart beam position detectors arranged in the beam path. The beam steerer(s) are preferably adjustable along at least two orthogonal axes of rotation for controlling the propagation direction of the beam. Error signals from the position sensors are fed into a beam steerer controller connected to the beam steerer(s) for electro-mechanically adjusting the beam steerer. The method of the invention involves fixing the propagation path on an angularly adjustable beam steering surface so that the propagation path at a different unique point in space, such as a target, can be controlled by adjusting the angular orientation of that beam steerer.
REFERENCES:
patent: 3551057 (1970-12-01), Hamiltan et al.
patent: 4939739 (1990-07-01), Hobart et al.
patent: 5121405 (1992-06-01), Negus
patent: 5200965 (1993-04-01), Okuyama et al.
patent: 5297156 (1994-03-01), Deacon
Clark William G.
Gabl Edward F.
Clark-MXR, Inc.
Moskowitz Nelson
Salai Stephen B.
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