Temperature dependent high speed dynamics of terahertz quantum cascade lasers

AGNEW, Gary, GRIER, Andrew, TAIMRE, Thomas, BERTLING, Karl, LIM, Yah Leng, IKONIC, Zoran, DEAN, Paul, VALAVANIS, Alex, HARRISON, Paul, INDJIN, Dragan and RAKIC, Aleksandar D. (2017). Temperature dependent high speed dynamics of terahertz quantum cascade lasers. IEEE Journal of Selected Topics in Quantum Electronics, 23 (99). (In Press)

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Official URL: http://ieeexplore.ieee.org/document/7792643/?reloa...
Link to published version:: 10.1109/JSTQE.2016.2638539

Abstract

Terahertz frequency quantum cascade lasers offer a potentially vast number of new applications. To better understand and apply these lasers, a device-specific modeling method was developed that realistically predicts optical output power under changing current drive and chip temperature. Model parameters are deduced from the self-consistent solution of a full set of rate equations, obtained from energy-balance Schro ̀ˆdinger-Poisson scattering transport calculations. The model is thus derived from first principles, based on the device structure, and is therefore not a generic or phenomenological model that merely imitates expected device behavior. By fitting polynomials to data arrays representing the rate equation parameters, we are able to significantly condense the model, improving memory usage and computational efficiency.

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre
Identification Number: 10.1109/JSTQE.2016.2638539
Depositing User: Paul Harrison
Date Deposited: 14 Dec 2016 09:44
Last Modified: 07 Apr 2017 17:30
URI: http://shura.shu.ac.uk/id/eprint/14251

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