Work

Wigner Reconstruction of Quantum States from a Narrow-Linewidth Semiconductor Laser

Year: 2026

Type: conference-paper

Abstract: We reconstruct the Wigner function of quantum states of light produced by an ultralow-linewidth semiconductor laser using experimentally acquired data from a Balanced Homodyne Detector (BHD). To this end, we implement a tomographic reconstruction technique based on Maximum Likelihood Estimation. For our specific implementation, we show that MLE provides robustness against statistical noise and enables the reconstruction of vacuum and coherent states. With these results, we want to investigate whether quiet-pump semiconductor lasers produce measurable squeezing [1].

Source: IEEE/LEOS Summer Topical Meetings

DOI: 10.1109/sum69529.2026.11659971

Authors: Federico Battiston, Heming Huang, Daniele Nello, Lorenzo Columbo, Nicolas Fabre, Juan Rafael Alvarez, Frédéric Grillot

Institutions: Politecnico di Torino, Télécom Paris, Université Laval

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W7204216426

FWCI:

Cites: 6

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Related to: 10