<div class="csl-bib-body">
<div class="csl-entry">Pinto, D., Díaz-Thomas, D. A., Zeineb, L., Kinjalk, K., Teissier, R., Bahriz, M., Lendl, B., & Baranov, A. N. (2024). Long wavelength distributed feedback tapered quantum cascade lasers. <i>Optics Express</i>, <i>32</i>(15), 26925–26937. https://doi.org/10.1364/OE.521039</div>
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dc.identifier.issn
1094-4087
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/209440
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dc.description.abstract
We present a study on distributed feedback tapered quantum cascade lasers emitting at 14 µm. The fabricated lasers with taper angles between 0° and 3° exhibited output powers scaling in accordance with the active zone volume increase. Reduced divergence angles as small as 4.2° have been obtained with diffraction limited-beam quality (M2 ≈ 1). With a first order Bragg-grating for single longitudinal mode selection, continuous wave operation was demonstrated up to almost room temperature with side-mode suppression ratios greater than 20 dB.
en
dc.description.sponsorship
European Commission
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dc.language.iso
en
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dc.publisher
OPTICA PUBLISHING GROUP
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dc.relation.ispartof
Optics Express
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
Quantum Cascade Lasers
en
dc.subject
InAs/AlSb
en
dc.subject
continuous wave operation
en
dc.title
Long wavelength distributed feedback tapered quantum cascade lasers
