Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation

We report a fiber-optic 10 GHz frequency transfer technique based on an optical–electronic joint phase compensator. A highly stable frequency signal at 10 GHz was transferred in a 50-km long fiber link by using this technique. Two key parameters of the frequency dissemination, the timing fluctuation...

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Main Authors: Wantao Huang, Yang Li, Peng Zhang, Lujun Fang, Dong Hou
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/21/11262
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author Wantao Huang
Yang Li
Peng Zhang
Lujun Fang
Dong Hou
author_facet Wantao Huang
Yang Li
Peng Zhang
Lujun Fang
Dong Hou
author_sort Wantao Huang
collection DOAJ
description We report a fiber-optic 10 GHz frequency transfer technique based on an optical–electronic joint phase compensator. A highly stable frequency signal at 10 GHz was transferred in a 50-km long fiber link by using this technique. Two key parameters of the frequency dissemination, the timing fluctuation and frequency stability were both measured. The experimental results show the root-mean-square timing fluctuation of the transferred microwave is about 103 fs within 10,000 s, and the frequency stability for the transmission link is 2.2 × 10<sup>−14</sup> at 1 s and 8.5 × 10<sup>−17</sup> at 2000 s. The technique proposed in this paper provides a powerful tool which can be used to transfer atomic clocks (e.g., commercial H-master and Cs clocks) in a long fiber link.
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spelling doaj.art-2ccc20a8236c4d718ac28cf2085633152023-11-24T03:40:44ZengMDPI AGApplied Sciences2076-34172022-11-0112211126210.3390/app122111262Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint CompensationWantao Huang0Yang Li1Peng Zhang2Lujun Fang3Dong Hou4Mathematics and Information Science, Guangzhou University, Guangzhou 510006, ChinaScience and Technology on Communication Security Laboratory, Institute of Southwestern Communication, Chengdu 610041, ChinaSchool of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaWe report a fiber-optic 10 GHz frequency transfer technique based on an optical–electronic joint phase compensator. A highly stable frequency signal at 10 GHz was transferred in a 50-km long fiber link by using this technique. Two key parameters of the frequency dissemination, the timing fluctuation and frequency stability were both measured. The experimental results show the root-mean-square timing fluctuation of the transferred microwave is about 103 fs within 10,000 s, and the frequency stability for the transmission link is 2.2 × 10<sup>−14</sup> at 1 s and 8.5 × 10<sup>−17</sup> at 2000 s. The technique proposed in this paper provides a powerful tool which can be used to transfer atomic clocks (e.g., commercial H-master and Cs clocks) in a long fiber link.https://www.mdpi.com/2076-3417/12/21/11262frequency transferfiber linkoptical–electronic joint compensationtiming fluctuation
spellingShingle Wantao Huang
Yang Li
Peng Zhang
Lujun Fang
Dong Hou
Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
Applied Sciences
frequency transfer
fiber link
optical–electronic joint compensation
timing fluctuation
title Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
title_full Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
title_fullStr Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
title_full_unstemmed Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
title_short Femtosecond-Level Frequency Transfer at 10 GHz over Long Fiber Link with Optical–Electronic Joint Compensation
title_sort femtosecond level frequency transfer at 10 ghz over long fiber link with optical electronic joint compensation
topic frequency transfer
fiber link
optical–electronic joint compensation
timing fluctuation
url https://www.mdpi.com/2076-3417/12/21/11262
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AT yangli femtosecondlevelfrequencytransferat10ghzoverlongfiberlinkwithopticalelectronicjointcompensation
AT pengzhang femtosecondlevelfrequencytransferat10ghzoverlongfiberlinkwithopticalelectronicjointcompensation
AT lujunfang femtosecondlevelfrequencytransferat10ghzoverlongfiberlinkwithopticalelectronicjointcompensation
AT donghou femtosecondlevelfrequencytransferat10ghzoverlongfiberlinkwithopticalelectronicjointcompensation