NDLI: Hot phonons and Auger related carrier heating in semiconductor optical amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Fehr, J.-N. Dupertuis, M.-A. Hessler, T.P. Kappei, L. Marti, D. Salleras, F. Nomura, M.S. Deveaud, B. Emery, J.-Y. Dagens, B.
Copyright Year	1965
Abstract	We have directly measured the carrier temperature in semiconductor optical amplifiers (SOAs) via spontaneous emission and we demonstrate an unexpectedly high carrier temperature. The direct correlation of the temperature increase with the carrier density suggests Auger recombination as the main heating mechanism. We have developed a model based on rate equations for the total energy density of electrons, holes, and longitudinal-optical phonons. This model allows us to explain the thermal behavior of carrier and phonon populations. The strong heating observed is shown to be due to the combined effects of hot phonon and Auger recombination in the valence band. We also observe an evolution of the Auger process, as the density is increased, from cubic to square dependence with coefficients C/sub 3/ = 0.9 10/sup -28/ cm/sup 6/ s/sup -1/ and C/sub 2/ = 2.4 10/sup -10/ cm/sup 3/ s/sup -1/. This change is explained by the hole quasi-Fermi level entering the valence band.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	674
Ending Page	681
Page Count	8
File Size	290741
File Format	PDF
ISSN	00189197
Volume Number	38
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phonons Heating Semiconductor optical amplifiers Temperature Spontaneous emission Charge carrier density Radiative recombination High speed optical techniques Nonlinear optics Semiconductor lasers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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