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Proceedings Paper

High-brightness pump sources using 2D VCSEL arrays
Author(s): Jean-Francois Seurin; Guoyang Xu; Qing Wang; Baiming Guo; Robert Van Leeuwen; Alexander Miglo; Prachi Pradhan; James D. Wynn; Viktor Khalfin; Chuni Ghosh
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Paper Abstract

Many applications require laser pump sources with high output power (tens to hundreds of Watts) in the smallest spot, with the smallest divergence. Such high-brightness pump sources typically use edge-emitting semiconductor lasers. However, it is also possible to use high-power two-dimensional vertical-cavity surfaceemitting laser (VCSEL) arrays for this purpose. Using a single 976nm 2D VCSEL array chip in an external cavity configuration, combined with a matching micro-lens array, we have demonstrated more than 30W output power from a 50μm/0.22NA fiber, corresponding to a brightness of 10MW/cm2.sr. This represents a substantial reduction in module complexity compared to edge-emitter based modules with similar brightness. These novel high-brightness pump sources exhibit some well-known intrinsic VCSEL performance features such as wavelength stability and narrow spectrum. Power and brightness can be scaled up using polarization and spectral combining.

Paper Details

Date Published: 6 February 2010
PDF: 9 pages
Proc. SPIE 7615, Vertical-Cavity Surface-Emitting Lasers XIV, 76150F (6 February 2010); doi: 10.1117/12.842492
Show Author Affiliations
Jean-Francois Seurin, Princeton Optronics (United States)
Guoyang Xu, Princeton Optronics (United States)
Qing Wang, Princeton Optronics (United States)
Baiming Guo, Princeton Optronics (United States)
Robert Van Leeuwen, Princeton Optronics (United States)
Alexander Miglo, Princeton Optronics (United States)
Prachi Pradhan, Princeton Optronics (United States)
James D. Wynn, Princeton Optronics (United States)
Viktor Khalfin, Princeton Optronics (United States)
Chuni Ghosh, Princeton Optronics (United States)


Published in SPIE Proceedings Vol. 7615:
Vertical-Cavity Surface-Emitting Lasers XIV
James K. Guenter; Kent D. Choquette, Editor(s)

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