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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 19, Iss. 4 — Apr. 1, 2002
  • pp: 663–666

High power and good beam quality at 980 nm from a vertical external-cavity surface-emitting laser

William J. Alford, Thomas D. Raymond, and Andrew A. Allerman  »View Author Affiliations


JOSA B, Vol. 19, Issue 4, pp. 663-666 (2002)
http://dx.doi.org/10.1364/JOSAB.19.000663


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Abstract

We demonstrate 1.5-W continuous-wave output power from a vertical external-cavity surface-emitting laser (VECSEL) based on InGaAs quantum wells as the gain medium. The VECSEL is pumped by the output of a single-bar diode-laser array at 814 nm and produces an optical-to-optical efficiency of 19%. The high output power is made possible by the use of a sapphire window optically contacted to the intracavity semiconductor surface for heat removal. We demonstrate the good beam quality of the VECSEL output by obtaining 1-W output from a single-mode fiber for 1.5 W launched with simple lenses. Pulsed operation produces a maximum peak power of ∼4.4 W and maximum average power of ∼2 W.

© 2002 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.5960) Lasers and laser optics : Semiconductor lasers

Citation
William J. Alford, Thomas D. Raymond, and Andrew A. Allerman, "High power and good beam quality at 980 nm from a vertical external-cavity surface-emitting laser," J. Opt. Soc. Am. B 19, 663-666 (2002)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-19-4-663

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