Simultaneous remote transfer of accurate timing and optical frequency over a public fiber network
Optics
2013-02-26 v2 Instrumentation and Detectors
Quantum Physics
Abstract
In this work we demonstrate for the first time that it is possible to transfer simultaneously an ultra-stable optical frequency and a precise and accurate timing over 540 km using a public telecommunication optical fiber networks with Internet data. The optical phase is used to carry both the frequency information and the timestamps by modulating a very narrow optical carrier at 1.55 m with spread spectrum signals using two-way satellite time transfer modems. The results in term of absolute time accuracy (250 ps) and long-term timing stability (20 ps) well outperform the conventional Global Navigation Satellite System or geostationary transfer methods.
Keywords
Cite
@article{arxiv.1209.4715,
title = {Simultaneous remote transfer of accurate timing and optical frequency over a public fiber network},
author = {Olivier Lopez and Amale Kanj and Paul-Eric Pottie and Giovanni D. Rovera and Joseph Achkar and Christian Chardonnet and Anne Amy-Klein and Giorgio Santarelli},
journal= {arXiv preprint arXiv:1209.4715},
year = {2013}
}