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Proceedings Paper

Design and characterization of electrically pumped vertical external cavity surface emitting lasers
Author(s): J. R. Orchard; D. T. D. Childs; L. C. Lin; B. J. Stevens; D. M. Williams; R. A. Hogg
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Paper Abstract

The design of electrically pumped vertical external cavity surface emitting lasers (EP-VECSELs) for high power applications require a number of optimisations in design trade-offs, mainly that of doping for improved electrical performance and optical loss. Devices with diameter greater than 70μm and current spreading layer thickness of 100μm suffer from non-uniform carrier injection into the active region, below this diameter output power scales linearly with device area. We show CW powers of 133mW from a 150μm device with 4x1017cm-3 substrate doping at 0°C can be obtained.

Paper Details

Date Published: 21 February 2011
PDF: 9 pages
Proc. SPIE 7919, Vertical External Cavity Surface Emitting Lasers (VECSELs), 79190K (21 February 2011); doi: 10.1117/12.875126
Show Author Affiliations
J. R. Orchard, The Univ. of Sheffield (United Kingdom)
D. T. D. Childs, The Univ. of Sheffield (United Kingdom)
L. C. Lin, The Univ. of Sheffield (United Kingdom)
B. J. Stevens, The Univ. of Sheffield (United Kingdom)
D. M. Williams, The Univ. of Sheffield (United Kingdom)
R. A. Hogg, The Univ. of Sheffield (United Kingdom)


Published in SPIE Proceedings Vol. 7919:
Vertical External Cavity Surface Emitting Lasers (VECSELs)
Ursula Keller, Editor(s)

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