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Proceedings Paper

High-brightness multilaser source
Author(s): Douglas S. Goodman; Wayne L. Gordon; Richard A. Jollay; Jeffrey William Roblee; Paul Gavrilovic; Dmitri V. Kuksenkov; Anish K. Goyal; Qinxin Zu
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Paper Abstract

This paper discusses a high-brightness multi-laser source developed at Polaroid for such applications as coupling light to fibers, pumping fiber lasers, pumping solid state lasers, material processing, and medical procedures. The power and brightness are obtained by imaging the nearfields of up to eight separate multi-mode lasers side by side on a multi-faceted mirror that makes the beams parallel. The lasers are microlensed to equalize the divergences in the two principal meridians. Each laser is aligned in a field- replaceable illuminator module whose output beam, focused at infinity, is bore-sighted in a mechanical cylinder. The illuminators are arranged roughly radially and the nearfields are reimaged on the mirror, which is produced by diamond machining. The array of nearfields is linearly polarized. A customizable afocal relay forms a telecentric image of the juxtaposed nearfields, as required by the application. The lasers can be of differing powers and wavelengths, and they can be independently switched. Light from other sources can be combined. The output can be utilized in free space or it can be coupled into a fiber for transport or a fiber laser for pumping. A linearly polarized free space output can be obtained, which allows two units to be polarization combined to double the power and brightness.

Paper Details

Date Published: 14 April 1999
PDF: 14 pages
Proc. SPIE 3626, Testing, Packaging, Reliability, and Applications of Semiconductor Lasers IV, (14 April 1999); doi: 10.1117/12.345417
Show Author Affiliations
Douglas S. Goodman, Polaroid Corp. (United States)
Wayne L. Gordon, Polaroid Corp. (United States)
Richard A. Jollay, Polaroid Corp. (United States)
Jeffrey William Roblee, Polaroid Corp. (United States)
Paul Gavrilovic, Polaroid Corp. (United States)
Dmitri V. Kuksenkov, Polaroid Corp. (United States)
Anish K. Goyal, Polaroid Corp. (United States)
Qinxin Zu, Polaroid Corp. (United States)

Published in SPIE Proceedings Vol. 3626:
Testing, Packaging, Reliability, and Applications of Semiconductor Lasers IV
Mahmoud Fallahi; S. C. Wang; Mahmoud Fallahi; Kurt J. Linden; S. C. Wang, Editor(s)

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