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Datum
2016Typ
- Conference Paper
ETH Bibliographie
yes
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Abstract
We investigate the functionalities of dual-section (DS) distributed feedback (DFB) quantum cascade lasers (QCLs) in continuous wave (CW) and intermittent continuous wave (iCW) operation. We analyze internal etaloning with spectrally resolved light-current-voltage characterization, time-resolved spectral analysis of thermal chirping during iCW operation. The experimental analysis is accompanied by a combination of finite element method (FEM) simulations and transfer matrix method (TMM) calculations of DS-DFB structures. Finally, we demonstrate how the internal etaloning can be minimized by means of anti-reflective (AR) coatings and how spectroscopic data with state-of-the-art precision can be acquired with such lasers. Mehr anzeigen
Publikationsstatus
publishedExterne Links
Buchtitel
2016 Compound Semiconductor Week (CSW)Seiten / Artikelnummer
Verlag
IEEEKonferenz
Thema
Quantum cascade lasers; Mid-infrared; Spectroscopy; Losses; Thermal effectsOrganisationseinheit
03759 - Faist, Jérôme / Faist, Jérôme
ETH Bibliographie
yes
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