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Trapped Ion Quantum Computing

Phase-Stable Optical Fiber Links for Quantum Network Protocols

arXiv
Authors: Nicholas V. Nardelli, Dileep V. Reddy, Michael Grayson, Daniel Sorensen, Martin J. Stevens, Michael D. Mazurek, L. Krister Shalm, Tara M. Fortier

Year

2025

Paper ID

51056

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

We demonstrate the distribution of single-photon-level pulses from a mode-locked laser source over a phase-stable fiber link, achieving an optical timing jitter of less than 100 as over 10 minutes of data accumulation. This stability enables a fidelity greater than 0.998 between two stabilized 2.1 km long deployed fiber links. Building on time and frequency metrology techniques traditionally used for high-stability optical atomic clock signal distribution, we use time and frequency multiplexing to achieve an isolation of quantum and classical channels of 8 times 1010. Our results mark a necessary step towards scalable, high-rate quantum networks with a provable quantum advantage.

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  • We demonstrate the distribution of single-photon-level pulses from a mode-locked laser source over a phase-stable fiber link, achieving an optical timing jitter of less than...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2510.16230 [2] arXiv https://arxiv.org/abs/2510.16230 [3] Publisher https://arxiv.org/abs/2510.16230

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