Thermal distribution in high power optical devices with power-law thermal conductivity

Chuanle Zhou, Matthew A Grayson*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

We introduce a power-law approximation to model non-linear ranges of the thermal conductivity, and under this approximation derive a simple analytical expression for calculating the temperature profile in high power quantum cascade lasers and light emitting diodes. The thermal conductivity of a type II InAs/GaSb superlattice (T2SL) is used as an example, having negative or positive power-law exponents depending on the thermal range of interest. The result is an increase or decrease in the temperature, respectively, relative to the uniform thermal conductivity assumption.

Original languageEnglish (US)
Title of host publicationQuantum Sensing and Nanophotonic Devices IX
Volume8268
DOIs
StatePublished - Feb 20 2012
EventQuantum Sensing and Nanophotonic Devices IX - San Francisco, CA, United States
Duration: Jan 22 2012Jan 26 2012

Other

OtherQuantum Sensing and Nanophotonic Devices IX
CountryUnited States
CitySan Francisco, CA
Period1/22/121/26/12

Keywords

  • high power
  • T2SL
  • temperature profile
  • thermal conductivity

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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