High-brightness line generators and fiber-coupled sources based on low-smile laser diode arrays

J. Watson; D. Schleuning; P. Lavikko; T. Alander; D. Lee; P. Lovato; H. Winhold; M. Griffin; S. Tolman; P. Liang; T. Hasenberg; M. Reed

doi:10.1117/12.765472

13 February 2008 High-brightness line generators and fiber-coupled sources based on low-smile laser diode arrays

J. Watson, D. Schleuning, P. Lavikko, T. Alander, D. Lee, P. Lovato, H. Winhold, M. Griffin, S. Tolman, P. Liang, T. Hasenberg, M. Reed

Author Affiliations +

Proceedings Volume 6876, High-Power Diode Laser Technology and Applications VI; 68760V (2008) https://doi.org/10.1117/12.765472
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

We describe the performance of diode laser bars mounted on conductive and water cooled platforms using low smile processes. Total smile of <1μm is readily achieved on both In and AuSn based platforms. Combined with environmentally robust lensing, these mounts form the basis of multiple, high-brightness products. Free-space-coupled devices utilizing conductively-cooled bars delivering 100W from a 200μm, 0.22NA fiber at 976nm have been developed for pumping fiber lasers, as well as for materials processing. Additionally, line generators for graphics and materials processing applications have been produced. Starting from single bars mounted on water-cooled packages that do not require de-ionized or pH-controlled water, these line generators deliver over 80W of power into a line with an aspect ratio of 600:1, and have a BPP of <2mm-mrad in the direction orthogonal to the line.

Citation Download Citation

J. Watson, D. Schleuning, P. Lavikko, T. Alander, D. Lee, P. Lovato, H. Winhold, M. Griffin, S. Tolman, P. Liang, T. Hasenberg, and M. Reed "High-brightness line generators and fiber-coupled sources based on low-smile laser diode arrays", Proc. SPIE 6876, High-Power Diode Laser Technology and Applications VI, 68760V (13 February 2008); https://doi.org/10.1117/12.765472

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