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This article is cited in 6 scientific papers (total in 6 papers)
Lasers
Equivalent circuit-level model of quantum cascade lasers with integrated hot-electron and hot-phonon effects
H R Yousefvand Department of Electrical Engineering, Islamshahr Branch, Islamic Azad University, Tehran, Iran
Abstract:
We report a study of the effects of hot-electron and hotphonon dynamics on the output characteristics of quantum cascade lasers (QCLs) using an equivalent circuit-level model. The model is developed from the energy balance equation to adopt the electron temperature in the active region levels, the heat transfer equation to include the lattice temperature, the nonequilibrium phonon rate to account for the hot phonon dynamics and simplified two-level rate equations to incorporate the carrier and photon dynamics in the active region. This technique simplifies the description of the electron – phonon interaction in QCLs far from the equilibrium condition. Using the presented model, the steady and transient responses of the QCLs for a wide range of sink temperatures (80 to 320 K) are investigated and analysed. The model enables us to explain the operating characteristics found in QCLs. This predictive model is expected to be applicable to all QCL material systems operating in pulsed and cw regimes.
Keywords:
quantum cascade lasers (QCLs), equivalent circuit model, hot electron, hot phonon.
Received: 13.04.2017
Citation:
H R Yousefvand, “Equivalent circuit-level model of quantum cascade lasers with integrated hot-electron and hot-phonon effects”, Kvantovaya Elektronika, 47:11 (2017), 992–999 [Quantum Electron., 47:11 (2017), 992–999]
Linking options:
https://www.mathnet.ru/eng/qe16709 https://www.mathnet.ru/eng/qe/v47/i11/p992
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Abstract page: | 186 | Full-text PDF : | 39 | References: | 28 | First page: | 14 |
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