8 papers · 1 filter
Robustness and optimization of N00N-state interferometry
Romain Dalidet, Anthony Martin, Louis Bellando +4
Quantum-enhanced interferometry is often discussed in terms of ideal resources and asymptotic scalings, whereas in practice its performance is set by a delicate interplay between l…
Quantum-enhanced sensing via spectral noise reduction
Romain Dalidet, Sébastien Tanzilli, Audrey Dot +4
We report a direct demonstration of quantum-enhanced sensing in the Fourier domain by comparing single- and two-photon interference in a fiber-based interferometer under strictly i…
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…
Compact and efficient quantum frequency conversion of a fiber-pigtailed single-photon source
Mathis Cohen, Anthony Martin, Romain Dalidet +9
Quantum frequency converters are key enabling technologies in photonic quantum information science to bridge the gap between quantum emitters and telecom photons. Here, we report a…
Entanglement-based clock syntonization for quantum key distribution networks. Demonstration over a 50 km-long link
Yoann Pelet, Grégory Sauder, Sébastien Tanzilli +2
We present the implementation of a time synchronization protocol as part of an experimentally deployed entanglement-based quantum key distribution (QKD) link. The system is deploye…
Two-photon interference at a telecom wavelength for quantum networking
Mathis Cohen, Laurent Labonté, Romain Dalidet +2
The interference between two independent photons stands as a crucial aspect of numerous quantum information protocols and technologies. In this work, we leverage fiber-coupled devi…