Detail publikačního výsledku

Coherent injection locking of quantum cascade laser frequency combs

HILLBRAND, J.; ANDREWS, A.; DETZ, H.; STRASSER, G.; SCHWARZ, B.

Originální název

Coherent injection locking of quantum cascade laser frequency combs

Anglický název

Coherent injection locking of quantum cascade laser frequency combs

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Chemical sensors, Laser diagnostics, Optical feedback, Spectrometers

Klíčová slova v angličtině

Chemical sensors, Laser diagnostics, Optical feedback, Spectrometers

Autoři

HILLBRAND, J.; ANDREWS, A.; DETZ, H.; STRASSER, G.; SCHWARZ, B.

Rok RIV

2019

Vydáno

01.02.2019

ISSN

1749-4885

Periodikum

Nature Photonics

Svazek

13

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

101

Strany do

104

Strany počet

5

URL

https://arxiv.org/abs/1808.06636

BibTex

@article{BUT152185,
  author="Johannes David {Hillbrand} and Aaron Maxwell {Andrews} and Hermann {Detz} and Gottfried {Strasser} and Benedikt {Schwarz}",
  title="Coherent injection locking of quantum cascade laser frequency combs",
  journal="Nature Photonics",
  year="2019",
  volume="13",
  number="2",
  pages="101--104",
  doi="10.1038/s41566-018-0320-3",
  issn="1749-4885",
  url="https://arxiv.org/abs/1808.06636"
}