A comparative study of temperature sensitivity of InGaAsP and AlGaAs MQW lasers using numerical simulations

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DOIResolve DOI: http://doi.org/10.1109/3.466060
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TypeArticle
Journal titleQuantum Electronics, IEEE Journal of
ISSN0018-9197
Volume31
Issue10
Pages18411847; # of pages: 7
Subject0.82 mum; 1.55 mum; AlGaAs; AlGaAs MQW lasers; aluminium compounds; Auger effect; Auger recombination; band offset; current leakage; electron-hole recombination; gallium arsenide; III-V semiconductors; indium compounds; InGaAsP; InGaAsP MQW lasers; laser theory; laser transitions; numerical simulations; optical confinement; quantum barrier; quantum well lasers; semiconductor device models; structural parameter; temperature sensitivity; thermal current leakage
AbstractWe used numerical simulation to compare the temperature sensitivity of an InGaAsP MQW laser emitting at 1.55 ?m and an AlGaAs MQW laser at 0.82 ?m. By artificially changing the InGaAsP laser gradually into a structure similar to the AlGaAs laser, we gained quantitative insight into how each material or structural parameter causes the relatively low T0 of the InGaAsP MQW laser. Using a typical MQW structure we demonstrated the relative importance of parameters involving Auger recombination, current leakage over the quantum barrier, optical confinement and band offset. We found that if these parameters were made the same as the AlGaAs laser, the T0 of the InGaAsP laser was even better than that of the AlGaAs laser. Our numerical simulation confirmed that the Auger recombination is the main cause of low T0 in MQW InGaAsP lasers. We also discovered that thermal current leakage over the barrier and Auger recombinations are correlated with each other and both factors must be improved to increase the T0 of InGaAsP lasers to that of AlGaAs lasers
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
Identifier10292731
NPARC number12327548
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Record identifier69d456ee-c973-4eec-b5d7-a404c8c99b83
Record created2009-09-10
Record modified2016-05-09
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