activity
20242026
collaborators

9 papers

quant-ph2026

Dual wavelength source of entanglement for space quantum communication

Valentin Dumas, Alek Lagarrigue, Tess Troisi +4

We report the demonstration of a bulk, intrinsically phase-stable source of polarization- and time-energy-entangled photon pairs at 810nm and 1550nm, directly coupled into single-m…

quant-ph2026

Quantum-enhanced phase sensitivity in an all-fiber Mach-Zehnder interferometer

Romain Dalidet, Sébastien Tanzilli, Gregory Sauder +3

Recent advances in quantum photonics have enabled increasingly robust protocols in optical phase estimation, achieving precisions beyond the standard quantum limit and approaching…

quant-ph2026

High-brightness fiber-based Sagnac source of entangled photon pairs for multiplexed quantum networks

Tess Troisi, Yoann Pelet, Romain Dalidet +4

A fully fibered source of entangled photon pairs based on a nonlinear Sagnac interferometer is reported. Operating at telecom wavelengths, the source relies exclusively on standard…

quant-ph2025

Deployed quantum key distribution network: further, longer and more users

Nathan Lecaron, Yoann Pelet, Grégory Sauder +6

Entanglement-based quantum links are the backbone of future quantum internet networks, enabling secure communication between distant cities. Realizing such networks requires addres…

physics.optics2025

Self-referenced nonlinear interferometry for chromatic dispersion sensing across multiple length scales

Romain Dalidet, Sébastien Tanzilli, Gregory Sauder +2

Chromatic dispersion critically impacts the performance of numerous applications ranging from telecommunication links to ultrafast optics and nonlinear devices, yet fast and precis…

physics.optics2025

High-resolution broadband characterization of resonance dispersion in an optical microresonator

Romain Dalidet, Adrien Bensemhoun, Gregory Sauder +12

Accurate knowledge of the uneven free spectral range of an optical microresonator, which provides direct insight into group velocity dispersion, is essential for understanding and…