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Proceedings Paper

Temperature effects in VCSELs
Author(s): Terry E. Sale; John Stuart Roberts; John P. R. David; R. Grey; Jon Woodhead; Peter N. Robson
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Paper Abstract

Vertical cavity surface emitting lasers (VCSELs) have been the subject of intense research in recent years. The compact nature of the devices means that heat generated within is not as readily dissipated as with more conventional stripe geometry lasers. Advances in the design of distributed Bragg reflector (DBR) cavity mirrors and intracavity contact schemes have reduced the threshold voltage from greater than 10 V to little more than the lasing photon potential, in some cases. However, thermal management is still a limiting factor for high power or high efficiency output from VCSELs By analyzing a variety of devices we have devised a simple but powerful model to explain the current-light response of VCSELs which is strongly dependant on the temperature rise in the active layer. Effects of the relative position of the cavity resonance and gain spectrum are also discussed.

Paper Details

Date Published: 4 April 1997
PDF: 11 pages
Proc. SPIE 3003, Vertical-Cavity Surface-Emitting Lasers, (4 April 1997); doi: 10.1117/12.271056
Show Author Affiliations
Terry E. Sale, Univ. of Surrey (United Kingdom)
John Stuart Roberts, Univ. of Sheffield (United Kingdom)
John P. R. David, Univ. of Sheffield (United Kingdom)
R. Grey, Univ. of Sheffield (United Kingdom)
Jon Woodhead, Univ. of Sheffield (United Kingdom)
Peter N. Robson, Univ. of Sheffield (United Kingdom)


Published in SPIE Proceedings Vol. 3003:
Vertical-Cavity Surface-Emitting Lasers
Kent D. Choquette; Dennis G. Deppe, Editor(s)

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