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High-power continuous-wave operation of a InGaAs/AlGaAs quantum dot laser

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16 Author(s)
Maximov, M.V. ; A. F. Ioffe Physical–Technical Institute, Politekhnicheskaya 26, 194021, St. Petersburg, Russia ; Shernyakov, Yu.M. ; Tsatsulnikov, A.F. ; Lunev, A.V.
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A 1 W continuous-wave laser operation via the ground state of vertically coupled InGaAs quantum dots (VCQDs) in an AlGaAs matrix is demonstrated. VCQDs are directly revealed in transmission electron microscopy images of the laser structure. Ninety-six percent internal quantum efficiency is realized. The laser gain maximum shifts significantly with drive current towards higher photon energies in agreement with the relatively broad size distribution of VCQDs. © 1998 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:83 ,  Issue: 10 )

Date of Publication:

May 1998

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