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Proceedings Paper

High power VCSEL systems for tailored intensity distributions
Author(s): Holger Moench; Stephan Gronenborn; Michael Miller; Peter Loosen
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Paper Abstract

Arrays of high power VCSELs offer a unique opportunity to create a target intensity distribution which is tailored to the needs of a specific application. The concept presented here images the near field of the VCSEL onto the target. This is achieved by a combination of micro-lenses and field lenses in order to superimpose many VCSELs in an array. The optical system can be simple and the freedom to realize a wide variety of different intensity distributions with one and the same optics is large. The total power can be scaled by using arrays of VCSELs and due to the superposition of many emitters the illumination pattern has low speckle and is robust against single emitter failures.

Paper Details

Date Published: 7 February 2011
PDF: 11 pages
Proc. SPIE 7952, Vertical-Cavity Surface-Emitting Lasers XV, 795207 (7 February 2011); doi: 10.1117/12.873813
Show Author Affiliations
Holger Moench, Philips Research Labs. (Germany)
Stephan Gronenborn, RWTH Aachen (Germany)
Michael Miller, Philips Technologie GmbH U-L-M Photonics (Germany)
Peter Loosen, RWTH Aachen (Germany)

Published in SPIE Proceedings Vol. 7952:
Vertical-Cavity Surface-Emitting Lasers XV
James K. Guenter; Chun Lei, Editor(s)

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