Joint time and frequency dissemination network over delay-stabilized fiber optic links

Abstract

A precise fiber-based time and frequency dissemination scheme for multiple users with a tree-like branching topology is proposed. Through this scheme, ultra-stable signals can be easily accessed online anywhere along the fiber without affecting other sites. The scheme is tested through an experiment, in which a modulated frequency signal and a synchronized time signal are transferred to multiple remote sites over a delay-stabilized fiber optic links that are over 50 km long. Results show that the relative stabilities are 5E-14@1s and 2E-17@10000s. Meanwhile, compared with each site, time synchronization precision is less than 80 ps. These results can pave the way to practical applications in joint time and frequency dissemination network systems.

8 pages, 5 figures

References in corpus (6)

• Making optical atomic clocks more stable with $10^{-16}$ level laser stabilization
• High-resolution microwave frequency dissemination on an 86-km urban optical link
• Cascaded multiplexed optical link on a telecommunication network for frequency dissemination
• 86-km optical link with a resolution of 2.10-18 for RF frequency transfer
• In-line extraction of an ultra-stable frequency signal over an optical fiber link
• The NIF Integrated Timing System - Design and Performance

Cited by in corpus (2)

• Fiber-optic joint time and frequency transfer with the same wavelength
• A hybrid solution for simultaneous transfer of ultrastable optical frequency, RF frequency and UTC time-tags over optical fiber