Coherent injection locking of quantum cascade laser frequency combs

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU130385" target="_blank" >RIV/00216305:26620/19:PU130385 - isvavai.cz</a>
Result on the web
<a href="https://arxiv.org/abs/1808.06636" target="_blank" >https://arxiv.org/abs/1808.06636</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41566-018-0320-3" target="_blank" >10.1038/s41566-018-0320-3</a>

Result language
angličtina
Original language name
Coherent injection locking of quantum cascade laser frequency combs
Original language description
Quantum cascade laser (QCL) frequency combs are a promising candidate for chemical sensing and biomedical diagnostics1– 4. They are electrically pumped and compact, making them an ideal platform for on-chip integration5. Until now, optical feedback is fatal for frequency comb generation in QCLs6. This property limits the potential for integration. Here, we demonstrate coherent electrical injection locking of the repetition frequency to a stabilized radio-frequency oscillator. We prove that the injection-locked QCL spectrum can be phase-locked, resulting in the generation of a frequency comb. We show that injection locking is not only a versatile tool for all-electrical frequency stabilization, but also mitigates the fatal effect of optical feedback. A prototype self-detected dual-comb set-up consisting only of an injection-locked dual-comb chip, a lens and a mirror demonstrates the enormous potential for on-chip dual-comb spectroscopy. These results pave the way to miniaturized and all-solid-state mid-infrared spectrometers.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
<a href="/en/project/EF16_027%2F0008371" target="_blank" >EF16_027/0008371: International mobility of researchers at the Brno University of Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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