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Proceedings Paper

Direct diode lasers with comparable beam quality to fiber, CO2, and solid state lasers
Author(s): Robin K. Huang; Bien Chann; James Burgess; Michael Kaiman; Robert Overman; John D. Glenn; Parviz Tayebati
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Paper Abstract

TeraDiode has produced kW-class ultra-high brightness fiber-coupled direct diode lasers. A fiber-coupled direct diode laser with a power level of 2,040 W from a 50 μm core diameter, 0.15 numerical aperture (NA) output fiber at a single center wavelength was demonstrated. This was achieved with a novel beam combining and shaping technique using COTS diode lasers. The fiber-coupled output corresponds to a Beam Parameter Product (BPP) of 3.75 mm-mrad and is the lowest BPP kW-class direct diode laser yet reported. This laser is suitable for industrial materials processing applications, including sheet metal cutting and welding. This 2-kW fiber-coupled direct diode laser has comparable brightness to that of industrial fiber lasers and CO2 lasers, and is over 10x brighter than state-of-the-art direct diode lasers.

Paper Details

Date Published: 8 February 2012
PDF: 6 pages
Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 824102 (8 February 2012); doi: 10.1117/12.907161
Show Author Affiliations
Robin K. Huang, TeraDiode, Inc. (United States)
Bien Chann, TeraDiode, Inc. (United States)
James Burgess, TeraDiode, Inc. (United States)
Michael Kaiman, TeraDiode, Inc. (United States)
Robert Overman, TeraDiode, Inc. (United States)
John D. Glenn, TeraDiode, Inc. (United States)
Parviz Tayebati, TeraDiode, Inc. (United States)

Published in SPIE Proceedings Vol. 8241:
High-Power Diode Laser Technology and Applications X
Mark S. Zediker, Editor(s)

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