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Tight real-time synchronization of a microwave clock to an optical clock across a turbulent air path.

ABSTRACT: The ability to distribute the precise time and frequency from an optical clock to remote platforms could enable future precise navigation and sensing systems. Here we demonstrate tight, real-time synchronization of a remote microwave clock to a master optical clock over a turbulent 4-km open air path via optical two-way time-frequency transfer. Once synchronized, the 10-GHz frequency signals generated at each site agree to 10-14 at one second and below 10-17 at 1000 seconds. In addition, the two clock times are synchronized to ±13 fs over an 8-hour period. The ability to phase-synchronize 10-GHz signals across platforms supports future distributed coherent sensing, while the ability to time-synchronize multiple microwave-based clocks to a high-performance master optical clock supports future precision navigation/timing systems.

SUBMITTER: Bergeron H

PROVIDER: S-EPMC5876866 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Tight real-time synchronization of a microwave clock to an optical clock across a turbulent air path.

Bergeron Hugo H Sinclair Laura C LC Swann William C WC Nelson Craig W CW Deschênes Jean-Daniel JD Baumann Esther E Giorgetta Fabrizio R FR Coddington Ian I Newbury Nathan R NR

Optica 20160415 4

The ability to distribute the precise time and frequency from an optical clock to remote platforms could enable future precise navigation and sensing systems. Here we demonstrate tight, real-time synchronization of a remote microwave clock to a master optical clock over a turbulent 4-km open air path via optical two-way time-frequency transfer. Once synchronized, the 10-GHz frequency signals generated at each site agree to 10<sup>-14</sup> at one second and below 10<sup>-17</sup> at 1000 seconds ...[more]

PMID: 29607352

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