Electro-optic time transfer with femtosecond stability

IF 3.6 2区 物理与天体物理 Q2 PHYSICS, APPLIED Applied Physics Letters Pub Date : 2025-03-18 DOI:10.1063/5.0240786
Joshua Olson, Robert Rockmore, Nathan D. Lemke, Sean Krzyzewski, Brian Kasch
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Abstract

Optical two-way time and frequency transfer (O-TWTFT) is an enabling technology that has applications ranging from fundamental investigations of relativity to the operation of global navigation satellite systems. Linear-optical-sampling (LOS) between optical frequency combs has been used to create very stable optical two-way time and frequency transfer links over free-space. Here, we demonstrate two-way time and frequency transfer using LOS between electro-optic frequency combs. This two-way electro-optic time and frequency transfer system demonstrated instabilities as low as 15 fs at 1 s of averaging time. These results show a pathway to highly stable, frequency agile, and low SWaP-C time transfer networks.
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具有飞秒稳定性的电光时间传递
光双向时频传输(O-TWTFT)是一种使能技术,其应用范围从相对论的基础研究到全球卫星导航系统的操作。光学频率梳之间的线性光学采样(LOS)已被用于在自由空间上创建非常稳定的光学双向时间和频率传输链路。在这里,我们展示了使用电光频率梳之间的LOS的双向时间和频率传输。这种双向电光时间和频率传输系统在平均时间1秒内的不稳定性低至15秒。这些结果显示了一个高度稳定、频率敏捷和低SWaP-C时间传递网络的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Applied Physics Letters
Applied Physics Letters 物理-物理:应用
CiteScore
6.40
自引率
10.00%
发文量
1821
审稿时长
1.6 months
期刊介绍: Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.
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