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Proceedings Paper

High-power diode laser modules from 410 nm to 2200 nm
Author(s): Bernd Köhler; Heiko Kissel; Marco Flament; Paul Wolf; Thomas Brand; Jens Biesenbach
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Paper Abstract

In this work we report on high-power diode laser modules covering a wide spectral range from 410 nm to 2200 nm. Driven by improvements in the technology of diode laser bars with non-standard wavelengths, such systems are finding a growing number of applications. Fields of application that benefit from these developments are direct medical applications, printing industry, defense technology, polymer welding and pumping of solid-sate lasers. Diode laser bars with standard wavelengths from 800 - 1000 nm are based on InGaAlAs, InGaAlP, GaAsP or InGaAs semiconductor material with an optical power of more than 100 W per bar. For shorter wavelengths from 630 - 690 nm InGaAlP semiconductor material is used with an optical power of about 5 W per bar. Extending the wavelength range beyond 1100 nm is realized by using InGaAs on InP substrates or with InAs quantum dots embedded in GaAs for wavelengths up to 1320 nm and (AlGaIn)(AsSb) for wavelengths up to 2200 nm. In these wavelength ranges the output power per bar is about 6 - 20 W. In this paper we present a detailed characterization of these diode laser bars, including measurements of power, spectral data and life time data. In addition, we will show different fiber coupled modules, ranging from 638 nm with 13 W output power (400 μm fiber, NA 0.22) up to 1940 nm with more than 50 W output power (600 μm fiber NA 0.22).

Paper Details

Date Published: 17 February 2010
PDF: 13 pages
Proc. SPIE 7583, High-Power Diode Laser Technology and Applications VIII, 75830F (17 February 2010); doi: 10.1117/12.841846
Show Author Affiliations
Bernd Köhler, DILAS Diodenlaser GmbH (Germany)
Heiko Kissel, DILAS Diodenlaser GmbH (Germany)
Marco Flament, DILAS Diodenlaser GmbH (Germany)
Paul Wolf, DILAS Diodenlaser GmbH (Germany)
Thomas Brand, DILAS Diodenlaser GmbH (Germany)
Jens Biesenbach, DILAS Diodenlaser GmbH (Germany)

Published in SPIE Proceedings Vol. 7583:
High-Power Diode Laser Technology and Applications VIII
Mark S. Zediker, Editor(s)

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