Non-resonant optical injection locking in quantum cascade laser frequency combs
Optical injection locking of the repetition frequency of a quantum cascade laser frequency comb is demonstrated using intensity modulated near-infrared light at 1.55 µm, illuminating the front facet of the laser. Compared to the traditional electrical modulation approach, the introduced technique pr...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-06-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0253292 |
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| author | Alexandre Parriaux Kenichi N. Komagata Mathieu Bertrand Mattias Beck Valentin J. Wittwer Jérôme Faist Thomas Südmeyer |
| author_facet | Alexandre Parriaux Kenichi N. Komagata Mathieu Bertrand Mattias Beck Valentin J. Wittwer Jérôme Faist Thomas Südmeyer |
| author_sort | Alexandre Parriaux |
| collection | DOAJ |
| description | Optical injection locking of the repetition frequency of a quantum cascade laser frequency comb is demonstrated using intensity modulated near-infrared light at 1.55 µm, illuminating the front facet of the laser. Compared to the traditional electrical modulation approach, the introduced technique presents benefits from several perspectives, such as the availability of mature and high bandwidth equipment in the near-infrared, circumvents the need for dedicated electronic components for the quantum cascade laser, and allows a direct link between the near and mid-infrared for amplitude to frequency modulation. We show that this stabilization scheme, used with moderate near-infrared power of a few milliwatts, allows for a strong reduction of the frequency noise. We also perform a full characterization of the mechanism and provide evidence that the locking range follows Adler’s law. A comparison of our results with those in recent literature indicates that the optical approach leads to better performance compared to the traditional method, which we expect to benefit mid-infrared spectroscopy and metrological applications. |
| format | Article |
| id | doaj-art-cc375e8bd4df45b699a3f03be9b12864 |
| institution | DOAJ |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-cc375e8bd4df45b699a3f03be9b128642025-08-20T03:14:57ZengAIP Publishing LLCAPL Photonics2378-09672025-06-01106066113066113-810.1063/5.0253292Non-resonant optical injection locking in quantum cascade laser frequency combsAlexandre Parriaux0Kenichi N. Komagata1Mathieu Bertrand2Mattias Beck3Valentin J. Wittwer4Jérôme Faist5Thomas Südmeyer61Laboratoire Temps-Fréquence, Institut de Physique, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland1Laboratoire Temps-Fréquence, Institut de Physique, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland2Institute for Quantum Electronics, ETH Zurich, Auguste-Piccard-Hof 1, 8093 Zurich, Switzerland2Institute for Quantum Electronics, ETH Zurich, Auguste-Piccard-Hof 1, 8093 Zurich, Switzerland1Laboratoire Temps-Fréquence, Institut de Physique, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland2Institute for Quantum Electronics, ETH Zurich, Auguste-Piccard-Hof 1, 8093 Zurich, Switzerland1Laboratoire Temps-Fréquence, Institut de Physique, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, SwitzerlandOptical injection locking of the repetition frequency of a quantum cascade laser frequency comb is demonstrated using intensity modulated near-infrared light at 1.55 µm, illuminating the front facet of the laser. Compared to the traditional electrical modulation approach, the introduced technique presents benefits from several perspectives, such as the availability of mature and high bandwidth equipment in the near-infrared, circumvents the need for dedicated electronic components for the quantum cascade laser, and allows a direct link between the near and mid-infrared for amplitude to frequency modulation. We show that this stabilization scheme, used with moderate near-infrared power of a few milliwatts, allows for a strong reduction of the frequency noise. We also perform a full characterization of the mechanism and provide evidence that the locking range follows Adler’s law. A comparison of our results with those in recent literature indicates that the optical approach leads to better performance compared to the traditional method, which we expect to benefit mid-infrared spectroscopy and metrological applications.http://dx.doi.org/10.1063/5.0253292 |
| spellingShingle | Alexandre Parriaux Kenichi N. Komagata Mathieu Bertrand Mattias Beck Valentin J. Wittwer Jérôme Faist Thomas Südmeyer Non-resonant optical injection locking in quantum cascade laser frequency combs APL Photonics |
| title | Non-resonant optical injection locking in quantum cascade laser frequency combs |
| title_full | Non-resonant optical injection locking in quantum cascade laser frequency combs |
| title_fullStr | Non-resonant optical injection locking in quantum cascade laser frequency combs |
| title_full_unstemmed | Non-resonant optical injection locking in quantum cascade laser frequency combs |
| title_short | Non-resonant optical injection locking in quantum cascade laser frequency combs |
| title_sort | non resonant optical injection locking in quantum cascade laser frequency combs |
| url | http://dx.doi.org/10.1063/5.0253292 |
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