Wetting-layer-pumped continuous-wave surface-emitting quantum-dot laser
Wetting-layer-pumped continuous-wave surface-emitting quantum-dot laser
Quantum-dot vertical-external-cavity surface-emitting lasers (QD VECSELs) are of interest due to their large inhomogeneous gain spectrum and the potential for temperature insensitivity and low threshold. We report a QD VECSEL which is wetting-layer-pumped using a 915-nm diode laser, reducing the quantum defect compared to barrier pumping. A slope efficiency of 56% relative to absorbed pump power was measured from an unprocessed sample with a heat-sink temperature of -30 °C, 1.75× higher than when barrier pumped using an 830-nm pump diode.
37-39
Wilcox, K.G.
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Kbashi, H.J.
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Quarterman, A.H.
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Morris, O.J.
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Apostolopoulos, V.
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Henini, M.
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Tropper, A.C.
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17 October 2011
Wilcox, K.G.
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Kbashi, H.J.
bf5e80ea-9774-4090-b096-7da1257e1f35
Quarterman, A.H.
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Morris, O.J.
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Apostolopoulos, V.
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Henini, M.
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Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Wilcox, K.G., Kbashi, H.J., Quarterman, A.H., Morris, O.J., Apostolopoulos, V., Henini, M. and Tropper, A.C.
(2011)
Wetting-layer-pumped continuous-wave surface-emitting quantum-dot laser.
IEEE Photonics Technology Letters, 24 (1), .
(doi:10.1109/LPT.2011.2171944).
Abstract
Quantum-dot vertical-external-cavity surface-emitting lasers (QD VECSELs) are of interest due to their large inhomogeneous gain spectrum and the potential for temperature insensitivity and low threshold. We report a QD VECSEL which is wetting-layer-pumped using a 915-nm diode laser, reducing the quantum defect compared to barrier pumping. A slope efficiency of 56% relative to absorbed pump power was measured from an unprocessed sample with a heat-sink temperature of -30 °C, 1.75× higher than when barrier pumped using an 830-nm pump diode.
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Published date: 17 October 2011
Identifiers
Local EPrints ID: 443600
URI: http://eprints.soton.ac.uk/id/eprint/443600
ISSN: 1041-1135
PURE UUID: f4f52165-69d3-48f5-a3d6-6bd423042bff
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Date deposited: 03 Sep 2020 16:31
Last modified: 17 Mar 2024 03:12
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Contributors
Author:
K.G. Wilcox
Author:
H.J. Kbashi
Author:
A.H. Quarterman
Author:
O.J. Morris
Author:
M. Henini
Author:
A.C. Tropper
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