Optical: systems and elements – Prism – With reflecting surface
Patent
1996-03-08
2000-02-22
Shafer, Ricky D.
Optical: systems and elements
Prism
With reflecting surface
359836, G02B 504
Patent
active
060287225
ABSTRACT:
A beam reconfiguring device comprises a single prism element that reconfigures a beam input, such as from a semiconductor laser or bar array, having aperture images with major axis aligned abreast along a single axis, into an output comprising multiple segments of the input image with a major axis of each segment aligned perpendicular along the same single axis. The etendue, the aperture-times-divergence product of a beam, in orthogonal directions of the output beam will be more nearly equal than the etendue in orthogonal directions of the input beam. The input beams and reconfigured beams are provided as adjacent inputs to a hypotenuse front edge surface of the prism element. The reconfigured beams are more conducive for converging into a single substantially symmetrical spot for input to an optical handling device or medium such as an optical fiber. An optical handling system is disclosed for achieving straight in-line, beam input/output that is more adaptable for optically aligned delivery applications. While a single prism element is readily conducive to the practice of the invention, the reflecting surfaces for reconfiguring the beam may also be a plurality of reflecting surfaces spatially disposed in proper alignment to accomplish the same desired reconfigured output beam.
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W. A. Clarkson et al., "Novel beam Shaping Technique for High Power Diode Bars", Cleo '94, Summaries of Papers presented at the Conference on Lasers & Electro-Optics, vol. 8, 1994 Technical Digest Series, May 8-13, 1994.
Carothers, Jr. W. Douglas
SDL Inc.
Shafer Ricky D.
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