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Proceedings Paper

Extremely high-brightness kW-class fiber coupled diode lasers with wavelength stabilization
Author(s): Robin K. Huang; Bien Chann; John D. Glenn
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Paper Abstract

TeraDiode has produced ultra-high brightness fiber-coupled direct diode lasers. A fiber-coupled direct diode laser with a power level of 1,040 W from a 200 μm core diameter, 0.18 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 18 mm-mrad and is the lowest BPP kW-class direct diode laser yet reported. The laser has been used to demonstrate laser cutting and welding of steel sheet metal up to 6.65 mm thick. Higher brightness fiber-coupled diode lasers, including a module with 418 W of power coupled to a 100 μm, 0.15 NA fiber, have also been demonstrated.

Paper Details

Date Published: 25 May 2011
PDF: 10 pages
Proc. SPIE 8039, Laser Technology for Defense and Security VII, 80390N (25 May 2011); doi: 10.1117/12.887332
Show Author Affiliations
Robin K. Huang, TeraDiode, Inc. (United States)
Bien Chann, TeraDiode, Inc. (United States)
John D. Glenn, TeraDiode, Inc. (United States)

Published in SPIE Proceedings Vol. 8039:
Laser Technology for Defense and Security VII
Mark Dubinskii; Stephen G. Post, Editor(s)

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