Monte Carlo study of intrinsic linewidths in terahertz quantum cascade lasers | Zendy

Christian Jirauschek | Zendy

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Monte Carlo study of intrinsic linewidths in terahertz quantum cascade lasers

Author(s) -

Christian Jirauschek

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.025922

Subject(s) - laser linewidth , terahertz radiation , cascade , quantum cascade laser , optics , laser , monte carlo method , photon , optoelectronics , photomixing , physics , terahertz spectroscopy and technology , materials science , far infrared laser , chemistry , terahertz metamaterials , statistics , mathematics , chromatography

Based on a coupled simulation of carrier transport and optical cavity field, the intrinsic linewidth in resonant phonon terahertz quantum cascade lasers is self-consistently analyzed. For high power structures, values on the order of Hz are obtained. Thermal photons are found to play a considerable role at elevated temperatures. A linewidth enhancement factor of 0.5 is calculated for the investigated designs.

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