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PreprintCC BY-NC-ND 4.0arXiv

Probing injection locking of an integrated nanolaser pair through RF beating

  • Jan-Niklas Topf
  • Roberto Gajardo
  • Guillaume Huyet
  • Fabrice Raineri
  • Guilhem Madiot
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Abstract

We demonstrate simultaneous optical injection locking of an integrated pair of photonic-crystal nanolasers coupled to a common silicon waveguide. Due to fabrication-induced disorder, the two nanolasers exhibit distinct emission wavelengths, allowing their individual locking ranges to be resolved as a function of the injection-laser detuning and power. We identify a region where both nanolasers are simultaneously locked to the master laser. To probe this collective locked state, the two nanolasers are independently pump-modulated at distinct radio frequencies. A beat note at the difference frequency appears only within the overlap region, providing a direct RF signature of simultaneous locking. These results establish RF beating as a compact diagnostic of common-master injection locking in integrated nanolaser systems.

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Cite

BibTeXRIS
BibTeX
@misc{topf2026probing,
  title = {{Probing injection locking of an integrated nanolaser pair through RF beating}},
  author = {Jan-Niklas Topf and Roberto Gajardo and Guillaume Huyet and Fabrice Raineri and Guilhem Madiot},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.09690},
  eprint = {2611.09690},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.09690},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - UNPB
TI  - Probing injection locking of an integrated nanolaser pair through RF beating
AU  - Jan-Niklas Topf
AU  - Roberto Gajardo
AU  - Guillaume Huyet
AU  - Fabrice Raineri
AU  - Guilhem Madiot
PY  - 2026
DA  - 2026/11/06
PB  - arXiv
DO  - 10.48550/arxiv.2611.09690
UR  - https://arxiv.org/abs/2611.09690
AB  - We demonstrate simultaneous optical injection locking of an integrated pair of photonic-crystal nanolasers coupled to a common silicon waveguide. Due to fabrication-induced disorder, the two nanolasers exhibit distinct emission wavelengths, allowing their individual locking ranges to be resolved as a function of the injection-laser detuning and power. We identify a region where both nanolasers are simultaneously locked to the master laser. To probe this collective locked state, the two nanolasers are independently pump-modulated at distinct radio frequencies. A beat note at the difference frequency appears only within the overlap region, providing a direct RF signature of simultaneous locking. These results establish RF beating as a compact diagnostic of common-master injection locking in integrated nanolaser systems.
ER  -