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PreprintCC BY 4.0arXiv

Complex frequency-dependent quadrature squeezing in semiconductor lasers

  • Daniele Nello
  • Giuseppe Patera
  • Lorenzo Columbo
Open at sourcePDFDOICite

Abstract

We present a comprehensive study of quadrature squeezing in a quantum well laser based on a fully quantum Langevin approach. We compute the frequency-resolved squeezing map of the laser field and identify optimal squeezing curves, revealing, for the first time to our knowledge, both frequency-dependent squeezing and complex or hidden squeezing in a semiconductor laser. We further analyse the role of the linewidth enhancement factor (alpha-factor) in the emergence of these features. Our results establish semiconductor lasers as a platform for the generation of non-classical light and open new perspectives for their application in quantum communication and sensing.

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Cite

BibTeXRIS
BibTeX
@misc{nello2026complex,
  title = {{Complex frequency-dependent quadrature squeezing in semiconductor lasers}},
  author = {Daniele Nello and Giuseppe Patera and Lorenzo Columbo},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2606.26266},
  eprint = {2606.26266},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.26266},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Complex frequency-dependent quadrature squeezing in semiconductor lasers
AU  - Daniele Nello
AU  - Giuseppe Patera
AU  - Lorenzo Columbo
PY  - 2026
DA  - 2026/10/08
PB  - arXiv
DO  - 10.48550/arxiv.2606.26266
UR  - https://arxiv.org/abs/2606.26266
AB  - We present a comprehensive study of quadrature squeezing in a quantum well laser based on a fully quantum Langevin approach. We compute the frequency-resolved squeezing map of the laser field and identify optimal squeezing curves, revealing, for the first time to our knowledge, both frequency-dependent squeezing and complex or hidden squeezing in a semiconductor laser. We further analyse the role of the linewidth enhancement factor (alpha-factor) in the emergence of these features. Our results establish semiconductor lasers as a platform for the generation of non-classical light and open new perspectives for their application in quantum communication and sensing.
ER  -