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

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

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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.

free-spaceoptical frequency transfervariable link distance

童周、刘雷、王家亮、操前、金志成、应康、韩申生、韩正甫、桂有珍

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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

Key Laboratory of Space Laser Communication and Detection Technology,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

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National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Shanghai,ChinaYouth Innovation Promotion Association of Chinese Academy of SciencesInnovation Program for Quantum Science and Technology

2020YFB04083006217524622ZR1471100YIPA20212442021ZD0300701

2024

10.1088/1674-1056/ad0718

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
年,卷(期)：2024.33(2)
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