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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 24 — Dec. 15, 2008
  • pp: 3010–3012

Optically pumped 5 μ m IV–VI VECSEL with Al-heat spreader

M. Rahim, F. Felder, M. Fill, and H. Zogg  »View Author Affiliations


Optics Letters, Vol. 33, Issue 24, pp. 3010-3012 (2008)
http://dx.doi.org/10.1364/OL.33.003010


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Abstract

Mid-infrared vertical external cavity surface emitting lasers (VECSELs) for 5 μ m in wavelength have been realized. The active parts are of a simple structure, either a 2 μ m thick PbTe gain layer or two 150 nm PbTe layers embedded in Pb 1 x Eu x Te barriers. Epitaxial 2.5 pair Pb 1 y Eu y Te Ba F 2 Bragg mirrors are employed to form the cavity, and an Al layer is deposited for improved heat dissipation. Emission up to 300 mW p is observed with microsecond pulses or 3 mW cw at 100 K is obtained. Quantum efficiency is up to 14%, and lasing occurs up to 175 K when pumped with a 1.55 μ m wavelength pump laser.

© 2008 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.5960) Lasers and laser optics : Semiconductor lasers
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(250.5960) Optoelectronics : Semiconductor lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 19, 2008
Revised Manuscript: November 5, 2008
Manuscript Accepted: November 5, 2008
Published: December 12, 2008

Citation
M. Rahim, F. Felder, M. Fill, and H. Zogg, "Optically pumped 5 μm IV-VI VECSEL with Al-heat spreader," Opt. Lett. 33, 3010-3012 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-24-3010


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