Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Patent
1995-09-07
1997-04-08
Scott, Jr., Leon
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
372 92, 372 34, H01S 3093
Patent
active
056195222
ABSTRACT:
A laser pump includes a pump housing defining a pump cavity. The pump cavity includes reflecting walls having two or more sections, which in combination, encircle the laser element of the laser. The two or more sections have centers which are off-set from each other and which may be of different radii or height. The longitudinal axes of the segments are parallel to the center of the laser element, and the center of one of the segments may be coaxial with the axis of the laser element. Pump light enters the pump cavity through one or more openings in the housing into the cavity and is reflected many times by the reflecting surfaces of the cavity, passing many times in various directions through various parts of the laser element, resulting in efficient and uniform pumping of the laser element.
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Stuart D. Jackson and James A. Piper; Applied Optics; vol. 33, No. 12; Apr. 20, 1994; Theoretical modeling of a diode-pumped Nd:YAG laser with a solid nonfocusing pump light collector; pp. 2273-2282.
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