Homodyne detection for pulse-by-pulse squeezing measurements

Fuente: arXiv
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Main Authors: Kouadou, Tiphaine, Gozlan, Elie, Garcia, Loïc, Polizzi, David, Fainsin, David, Paparelle, Iris, Celis, R. L. Rincón, Oriot, Bastien, Aad, Anthony Abi, Namdar, Peter, Roland, Ganaël, Treps, Nicolas, Argence, Bérengère, Parigi, Valentina
Format: Preprint
Published: 2025
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author Kouadou, Tiphaine
Gozlan, Elie
Garcia, Loïc
Polizzi, David
Fainsin, David
Paparelle, Iris
Celis, R. L. Rincón
Oriot, Bastien
Aad, Anthony Abi
Namdar, Peter
Roland, Ganaël
Treps, Nicolas
Argence, Bérengère
Parigi, Valentina
author_facet Kouadou, Tiphaine
Gozlan, Elie
Garcia, Loïc
Polizzi, David
Fainsin, David
Paparelle, Iris
Celis, R. L. Rincón
Oriot, Bastien
Aad, Anthony Abi
Namdar, Peter
Roland, Ganaël
Treps, Nicolas
Argence, Bérengère
Parigi, Valentina
contents Homodyne detection is a phase-sensitive measurement technique, essential for the characterization of continuous-variable (CV)-encoded quantum states of light. It is a key component to the implementation of CV quantum-information protocols and benefits from operating, by design, at room temperature. However, performing high-speed quantum information processing remains a major challenge, as conventional homodyne detectors often fail to sustain pulsed operation at high repetition rates due to electronic limitations. We present wideband homodyne detectors operating at near-infrared (NIR) and telecom wavelengths, with optimized performance at repetition rates up to 150 MHz. We demonstrate their performance by resolving the pulse-by-pulse structure of squeezed states of light at telecom wavelengths while preserving their spectral multimode properties.
format Preprint
id arxiv_https___arxiv_org_abs_2511_04578
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Homodyne detection for pulse-by-pulse squeezing measurements
Kouadou, Tiphaine
Gozlan, Elie
Garcia, Loïc
Polizzi, David
Fainsin, David
Paparelle, Iris
Celis, R. L. Rincón
Oriot, Bastien
Aad, Anthony Abi
Namdar, Peter
Roland, Ganaël
Treps, Nicolas
Argence, Bérengère
Parigi, Valentina
Quantum Physics
Homodyne detection is a phase-sensitive measurement technique, essential for the characterization of continuous-variable (CV)-encoded quantum states of light. It is a key component to the implementation of CV quantum-information protocols and benefits from operating, by design, at room temperature. However, performing high-speed quantum information processing remains a major challenge, as conventional homodyne detectors often fail to sustain pulsed operation at high repetition rates due to electronic limitations. We present wideband homodyne detectors operating at near-infrared (NIR) and telecom wavelengths, with optimized performance at repetition rates up to 150 MHz. We demonstrate their performance by resolving the pulse-by-pulse structure of squeezed states of light at telecom wavelengths while preserving their spectral multimode properties.
title Homodyne detection for pulse-by-pulse squeezing measurements
topic Quantum Physics
url https://arxiv.org/abs/2511.04578