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Proceedings Paper

Toward quantum dot laser diodes emitting at 1.5 μm
Author(s): Simon Fafard; John P. McCaffrey; Yan Feng; C. Ni. Allen; Hugues Marchand; L. Isnard; Patrick Desjardins; S. Guillon; Remo A. Masut
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Paper Abstract

Quantum Dot laser diodes have been made using InAs self- assembled quantum dots (QDs) in the active region of separate confinement heterostructures. The lasers grown by Molecular Beam Epitaxy (MBE) with stacked InAs QDs grown on GaAs gave record low thresholds of 13 A/cm2 at 77 K and 82 A/cm2 at 15 degree(s)C. On InP substrates, InAs QDs have been grown by Metal-Organic Chemical Vapor Deposition (MOCVD) with InP claddings, and by MBE in InGaAlAs separate confinement heterostructures. For the InAs/InP by MOCVD, the QD photoluminescence (PL) peaks between 1.51 micrometers and 1.57 micrometers at 77 K and close to 1.6 micrometers at 300 K. Transmission Electron Microscope analysis correlated with the PL results reveal that the QD density depends on the growth interrupt time which follows the InAs deposition. For the InAs/InGaAlAs by MBE, the QD electroluminescence peaks at approximately 1.42 micrometers at 300 K.

Paper Details

Date Published: 4 December 1998
PDF: 6 pages
Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328737
Show Author Affiliations
Simon Fafard, National Research Council Canada (Canada)
John P. McCaffrey, National Research Council Canada (Canada)
Yan Feng, National Research Council Canada (Canada)
C. Ni. Allen, National Research Council Canada (Canada)
Hugues Marchand, Ecole Polytechnique de Montreal (Canada)
L. Isnard, Ecole Polytechnique de Montreal (Canada)
Patrick Desjardins, Ecole Polytechnique de Montreal (Canada)
S. Guillon, Ecole Polytechnique de Montreal (Canada)
Remo A. Masut, Ecole Polytechnique de Montreal (Canada)


Published in SPIE Proceedings Vol. 3491:
1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications
George A. Lampropoulos; Roger A. Lessard, Editor(s)

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