Apparatus for reshaping an optical beam bundle

Details Apparatus for reshaping an optical beam bundle Apparatus for reshaping an optical beam bundle

2005-03-22

2005-03-22

Spector, David N. (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C362S259000

Reexamination Certificate

active

06870682

ABSTRACT:
Apparatus for shaping an optical beam bundle carrying a plurality of substantially parallel optical beams disposed in a common plane of travel. First reflective facets and second reflective facets are provided, the first reflective facets being oriented so as to deflect the optical beams of the bundle into a plurality of intermediate, substantially non-parallel optical beams. Each of the second reflective facets is spatially disposed so as to receive a respective one of the intermediate optical beams at a different respective distance from the plane of travel of the optical beam bundle. Also, the second reflective facets are oriented so as to deflect the intermediate optical beams into a bundle of substantially parallel output optical beams. In this way, the output beam can be more adapted for a particular application. In certain cases, this also achieves increased brightness of a laser beam through reduced output beam divergence and/or total cross-sectional area.

REFERENCES:
patent: 5155623 (1992-10-01), Miller et al.
patent: 5808323 (1998-09-01), Spaeth et al.
patent: 6504650 (2003-01-01), Alfrey
Faircloth, Brian, “High-brightness high-power fiber coupled diode laser system for material processing and laser pumping”, Proceedings of SPIE vol. 4973 (2003), pp. 34-41.

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