Fiber-optic time-frequency transfer in gigabit ethernet networks over urban fiber links

被引：11
|
作者：
Lu, Zhan [1 ]
Gui, Youzhen [2 ,3 ]
Wang, Jialiang [2 ]
Ying, Kang [1 ]
Sun, Yanguang [1 ]
Liu, Lei [2 ]
Cheng, Nan [2 ]
Cai, Haiwen [1 ,3 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Space Laser Commun & Detect Technol, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 08期
基金：
中国国家自然科学基金;
关键词：
JOINT TIME; STABILITY; ACCURACY;
D O I：
10.1364/OE.422727
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a new optical pulse amplitude modulation (PAM) scheme where joint ultrastable time-frequency and gigabit ethernet data transfer with the same laser wavelength is realized. Time transmission is compatible with the White Rabbit (WR) based on gigabit ethernet networks, and frequency transmission is achieved by using 100MHz radio frequency (RF) modulation and the round-trip compensation methods. The laser is on-off keying (OOK) modulated by the WR signal, the RF and WR signal are modulated by optical PAM in a Mach-Zehnder interferometer modulator (MZM), and the local and remote site are connected by 96km urban fiber in Shanghai. The experimental results demonstrate that the frequency instabilities are 5.7E-14/1 s and 5.9E-17/10(4)s, and the time interval transfer of 1 pulse per second (PPS) signal with less than 300fs stability after 10(4) s are obtained. This novel scheme can transmit frequency signals at hydrogen-maser-level stability in the gigabit ethernet network. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：11693 / 11701
页数：9
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