Variable, homogenizing optical splitter apparatus and method

Details Variable, homogenizing optical splitter apparatus and method Variable, homogenizing optical splitter apparatus and method

2007-11-13

2007-11-13

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

With reflecting element

C359S618000, C362S551000

Reexamination Certificate

active

11507312

ABSTRACT:
An apparatus and method for receiving a Gaussian profile optical input signal and splitting the input signal into two or more homogenized, top-hat profile output beams. In one embodiment first and second hexagonally shaped homogenizer tubes are coupled perpendicularly to one another. A beam splitting element is disposed within the second tube. A Gaussian profile input optical signal is directed into an input end of the first tube and reflects off highly reflective interior surfaces of the first tube as it propagates therethrough and impinges the beam splitting element. As it is split into two or more subcomponents by the beam splitting element, it continues reflecting off of highly reflective interior surfaces of the second tube until each of the output beams reaches a respective output end of the second tube. The apparatus accomplishes redirecting, splitting and transforming a Gaussian profile input optical signal into a desired plurality of homogenized, top-hat profile output signals in a compact configuration that is highly optically efficient.

REFERENCES:
patent: 6112004 (2000-08-01), Colvin
patent: 7182495 (2007-02-01), Cianciotto et al.
Co-pending U.S. Appl. No. 10/744,922, filed Dec. 23, 2003.
Co-pending U.S. Appl. No. 10/857,073, filed May 28, 2004.
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Co-pending U.S. Appl. No. 11/154,079, filed Jun. 15, 2005.
Co-pending U.S. Appl. No. 11/180,285, filed Jul. 12, 2005.
Co-pending U.S. Appl. No. 11/199,826, filed Aug. 9, 2005.

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