Complex frequency-dependent quadrature squeezing in semiconductor lasers

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.

Quantum Physics (quant-ph); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Optics (physics.optics)

arXiv:2606.26266 [quant-ph]

(or arXiv:2606.26266v2 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2606.26266 Focus to learn more arXiv-issued DOI via DataCite

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