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Proceedings Paper

Wavelength-stabilized fiber-coupled diode laser with 500 W output and 20 mm × mrad beam quality
Author(s): D. M. Grasso; N. Shou; H. Chen; R. Pathak; P. Liang; S. D. Roh; D. Lee
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Paper Abstract

We report the development of a fiber-coupled diode laser module with high spatial and spectral brightness. Four arrays of diode laser bars are multiplexed using polarization and narrow-band wavelength combination. The module achieves 500 W of output power from a 200 μm, 0.2 NA fiber. The output spectrum, composed of contributions from more than 150 emitters, is narrowed using VBGs and has nearly 100% content within +/- 1.5 nm of 975 nm at full power.

Paper Details

Date Published: 7 May 2012
PDF: 7 pages
Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 83810K (7 May 2012); doi: 10.1117/12.921592
Show Author Affiliations
D. M. Grasso, Coherent, Inc. (United States)
N. Shou, Coherent, Inc. (United States)
H. Chen, Coherent, Inc. (United States)
R. Pathak, Coherent, Inc. (United States)
P. Liang, Coherent, Inc. (United States)
S. D. Roh, LG Innotek (Korea, Republic of)
D. Lee, Coherent, Inc. (United States)

Published in SPIE Proceedings Vol. 8381:
Laser Technology for Defense and Security VIII
Mark Dubinskii; Stephen G. Post, Editor(s)

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