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Proceedings Paper

Differential gain enhancement in a quantum dash laser using strong optical injection
Author(s): L. F. Lester; F. Grillot; N. A. Naderi; V. Kovanis
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Paper Abstract

Increased differential gain is typically realized through strain, quantum confinement, or p-type doping in the active region. These methods have been applied to quantum dots or dashes to raise the differential gain with limited success because the optical gain of these low dimensional systems saturates at modest values. Instead larger differential gain can be accessed at wavelengths blue-shifted from the gain peak and close to optical transparency using the threshold shift induced by optical injection. Using these approaches, greater than 50X improvement in the differential gain has been achieved in an injection-locked QDash FP laser compared to its free-running value.

Paper Details

Date Published: 14 March 2013
PDF: 8 pages
Proc. SPIE 8619, Physics and Simulation of Optoelectronic Devices XXI, 861907 (14 March 2013); doi: 10.1117/12.2004365
Show Author Affiliations
L. F. Lester, The Univ. of New Mexico (United States)
F. Grillot, Telecom ParisTech, CNRS (France)
N. A. Naderi, The Univ. of New Mexico (United States)
V. Kovanis, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 8619:
Physics and Simulation of Optoelectronic Devices XXI
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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