High performance 4.7 THz GaAs quantum cascade lasers based on four quantum wells
Abstract
GaAs/AlGaAs quantum cascade lasers based on four quantum well structures operating at 4.7 THz are reported. A large current density dynamic range is observed, leading to a maximum operation temperature of 150 K for the double metal waveguide device and a high peak output power more than 200 mW for the single surface plasmon waveguide device. A continuous wave, single mode, third order distributed feedback laser with a low electrical power dissipation and a narrow far-field beam pattern, which is required for a local oscillator in astronomy heterodyne spectrometers, is also demonstrated. Show more
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https://doi.org/10.3929/ethz-b-000125521Publication status
publishedExternal links
Journal / series
New Journal of PhysicsVolume
Pages / Article No.
Publisher
IOP PublishingSubject
Quantum cascade laser; THz; GaAs/AlGaAs; Heterodyne receiver; Wave-guideOrganisational unit
03759 - Faist, Jérôme / Faist, Jérôme
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