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Proceedings Paper

More brilliance from high-power laser diodes
Author(s): Martin Behringer; Marc Philippens; W. Teich; Alexis Schmitt; Stefan Morgott; Joerg Heerlein; Gerhard Herrmann; Johann Luft; G. Seibold; Jens Biesenbach; Thomas Brand; Marcel Marchiano
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Paper Abstract

The introduction of high power diode laser systems in industry has boosted the interest in these devices for a wide range of applications. Besides printing and soldering, cutting and deep penetration welding are becoming more important. An overview about the developments, an update on today's high power laser activities and an outlook will be given, what characteristics laser bars will have to fulfil in the near future. For higher brightness, laser bars with lower fill factors, monolithic integrated laser junctions and tapered laser designs were investigated. High power diode laser (HPDL) bars with 25% - 50% fill factor were operated between 40 W and 80 W and lifetimes up to 100 000 hours could be extrapolated. Tapered laser bars with 50W output power and high wall plug efficiencies were developed. Wavelength multiplexing and polarisation coupling were used in order to reach multi-kilo-Watt diode laser emission. Examples for applications will be given.

Paper Details

Date Published: 19 June 2003
PDF: 9 pages
Proc. SPIE 4993, High-Power Fiber and Semiconductor Lasers, (19 June 2003); doi: 10.1117/12.479740
Show Author Affiliations
Martin Behringer, OSRAM Opto Semiconductors GmbH (Germany)
Marc Philippens, OSRAM Opto Semiconductors GmbH (Germany)
W. Teich, OSRAM Opto Semiconductors GmbH (Germany)
Alexis Schmitt, OSRAM Opto Semiconductors GmbH (Germany)
Stefan Morgott, OSRAM Opto Semiconductors GmbH (Germany)
Joerg Heerlein, OSRAM Opto Semiconductors GmbH (Germany)
Gerhard Herrmann, OSRAM Opto Semiconductors GmbH (Germany)
Johann Luft, OSRAM Opto Semiconductors GmbH (Germany)
G. Seibold, Dilas Diodenlaser GmbH (Germany)
Jens Biesenbach, Dilas Diodenlaser GmbH (Germany)
Thomas Brand, Dilas Diodenlaser GmbH (Germany)
Marcel Marchiano, Dilas Diodenlaser GmbH (Germany)

Published in SPIE Proceedings Vol. 4993:
High-Power Fiber and Semiconductor Lasers
Mahmoud Fallahi; Jerome V. Moloney, Editor(s)

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