Robust free-space optical frequency transfer in time-varying link distances conditions

童周 ¹刘雷 ²王家亮 ²操前 ²金志成 ²应康 ³韩申生 ⁴韩正甫 ⁵桂有珍⁶

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作者信息

1. School of Physical Sciences,University of Science and Technology of China,Hefei 230000,China;Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China
2. Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China
3. Key Laboratory of Space Laser Communication and Detection Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China
4. Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310024,China
5. School of Physical Sciences,University of Science and Technology of China,Hefei 230000,China
6. Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
折叠

Abstract

Future inter-satellite clock comparison on high orbit will require optical time and frequency transmission technology between moving objects.Here,we demonstrate robust optical frequency transmission under the condition of variable link distance.This variable link is accomplished by the relative motion of a single telescope fixed on the experimental platform to a corner-cube reflector(CCR)installed on a sliding guide.Two acousto-optic modulators with different frequencies are used to separate forward signal from backward signal.With active phase noise suppression,when the CCR moves back and forth at a constant velocity of 20 cm/s and an acceleration of 20 cm/s2,we achieve the best frequency stability of 1.9 × 10-16 at 1 s and 7.9 × 10-19 at 1000 s indoors.This work paves the way for future studying optical frequency transfer between ultra-high-orbit satellites.

Key words

free-space/optical frequency transfer/variable link distance

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基金项目

National Key Research and Development Program of China(2020YFB0408300)

National Natural Science Foundation of China(62175246)

Natural Science Foundation of Shanghai,China(22ZR1471100)

Youth Innovation Promotion Association of Chinese Academy of Sciences(YIPA2021244)

Innovation Program for Quantum Science and Technology(2021ZD0300701)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量26

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