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Proceedings Paper

Description and applications of high-brightness multi-laser-diode system
Author(s): Rajminder Singh; Aland K. Chin; Qinxin Zu; Ferdynand P. Dabkowski; Richard A. Jollay; Douglas L. Bull; Joseph Fanelli; Douglas S. Goodman; Jeffrey William Roblee; William T. Plummer
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Paper Abstract

This paper describes a novel, high-brightness, multi-laser- diode system that provides great flexibility for use in a wide array of applications. The system consists of eight individual, field-replaceable laser diodes, whose outputs are optically combined to provide a collimated beam. Field replaceability of the diodes and mechanical robustness of this system make it particularly suitable for highly demanding environments. CW optical power greater than 90 Watts at 915 nm was focused to a spot size of 140 X 130 micrometer and a numerical aperture of 0.22 NA. This high CW power density (approximately 5 X 105 W/cm2) was achieved by polarization coupling of two multi-laser-diode systems. Optical power in excess of 52 W was obtained from a single-end pumped, grating stabilized Yb:fiber laser at 1100 nm. This paper will also present results on digital printing, CD-RW disk initialization and solid-state laser pumping. A unique feature of this system is the ability for direct-diode coupling to fiber, eliminating any splicing or connector- related losses.

Paper Details

Date Published: 29 March 2000
PDF: 10 pages
Proc. SPIE 3945, Laser Diodes and LEDs in Industrial, Measurement, Imaging, and Sensors Applications II; Testing, Packaging, and Reliability of Semiconductor Lasers V, (29 March 2000); doi: 10.1117/12.380550
Show Author Affiliations
Rajminder Singh, Boston Laser, Inc. (United States)
Aland K. Chin, Boston Laser, Inc. (United States)
Qinxin Zu, Boston Laser, Inc. (United States)
Ferdynand P. Dabkowski, Boston Laser, Inc. (United States)
Richard A. Jollay, Boston Laser, Inc. (United States)
Douglas L. Bull, Boston Laser, Inc. (United States)
Joseph Fanelli, Boston Laser, Inc. (United States)
Douglas S. Goodman, Polaroid Corp. (United States)
Jeffrey William Roblee, Polaroid Corp. (United States)
William T. Plummer, Polaroid Corp. (United States)


Published in SPIE Proceedings Vol. 3945:
Laser Diodes and LEDs in Industrial, Measurement, Imaging, and Sensors Applications II; Testing, Packaging, and Reliability of Semiconductor Lasers V
Geoffrey T. Burnham; S. C. Wang; Geoffrey T. Burnham; Xiaoguang He; Kurt J. Linden; S. C. Wang, Editor(s)

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