Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Fiber-optic joint time and frequency transfer with the same wavelength

Not Accessible

Your library or personal account may give you access

Abstract

Optical fiber links have proven their powerful ability to transfer the ultrastable clock signals over a national and continental metrological optical network. In this Letter, we propose and demonstrate a new scheme that time and frequency signals are modulated on the same laser wavelength with phase and intensity modulation by an independent electro-optic modulator, respectively. Different wavelengths are used in two opposite directions to prevent Rayleigh scattering. The noise changes caused by the fluctuations of the transfer links are actively canceled at the local site by optical delay lines. Radio frequency with 1 GHz and time signal with one pulse per second (1 PPS) are transmitted over 110 km fiber spools. The experimental results demonstrate that frequency instabilities of ${1.7{\rm E} - 14}$ at 1 s and ${5.9{\rm E} - 17}$ at ${{10}^4}\;{\rm s}$ and time interval transfer of 1 PPS signal with sub-ps stability after 1000 s are obtained. This novel scheme offers advantages with respect to reduce the channel in the fiber network, and can keep the time and frequency signal free from interference with each other.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Fiber-optic time-frequency transfer in gigabit ethernet networks over urban fiber links

Zhan Lu, Youzhen Gui, Jialiang Wang, Kang Ying, Yanguang Sun, Lei Liu, Nan Cheng, and Haiwen Cai
Opt. Express 29(8) 11693-11701 (2021)

Fiber-optic joint time and frequency transmission with enhanced time precision

Faxing Zuo, Qi Li, Kunfeng Xie, Liang Hu, Jianping Chen, and Guiling Wu
Opt. Lett. 47(4) 1005-1008 (2022)

High-stability and multithreading phase-coherent receiver for simultaneous transfer of stabilized optical and radio frequencies

Zitong Feng, Xi Zhang, Rui Wu, Zhidan Ding, Fei Yang, Yanguang Sun, Nan Cheng, Youzhen Gui, and Haiwen Cai
Opt. Lett. 44(10) 2418-2421 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved