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

Chuanle Zhou; M. Grayson

doi:10.1117/12.913568

20 January 2012 Thermal distribution in high power optical devices with power-law thermal conductivity

Chuanle Zhou, M. Grayson

Proceedings Volume 8268, Quantum Sensing and Nanophotonic Devices IX; 82680V (2012) https://doi.org/10.1117/12.913568
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Chuanle Zhou and M. Grayson "Thermal distribution in high power optical devices with power-law thermal conductivity", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82680V (20 January 2012); https://doi.org/10.1117/12.913568

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