【摘 要】
：
光纤光学频率传递是新一代时间频率体系和地基授时系统的重要组成部分,利用光纤实现高精度光学频率传递具有明显的精度优势和应用前景.本文报道了中国科学院国家授时中心在高精度光纤光学频率传递方面的研究进展.112 km实地光纤上国内首次实现万秒稳定度7.5×10-20的光频传递;利用光外差锁相方案实现了光频级联传递技术突破,在224 km实地光纤上光频传递稳定度万秒稳定度7.7×10-19;首次提出并验证了一种基于本地测量的光纤光频双向比对,50 km频率比对稳定度秒稳达到1.2×10-16,4万秒稳定度达到1.
【机 构】
：
中国科学院 国家授时中心,西安 710600;中国科学院 时间频率基准重点实验室,西安 710600;中国科学院 国家授时中心,西安 710600;中国科学院 时间频率基准重点实验室,西安 71060
论文部分内容阅读
光纤光学频率传递是新一代时间频率体系和地基授时系统的重要组成部分,利用光纤实现高精度光学频率传递具有明显的精度优势和应用前景.本文报道了中国科学院国家授时中心在高精度光纤光学频率传递方面的研究进展.112 km实地光纤上国内首次实现万秒稳定度7.5×10-20的光频传递;利用光外差锁相方案实现了光频级联传递技术突破,在224 km实地光纤上光频传递稳定度万秒稳定度7.7×10-19;首次提出并验证了一种基于本地测量的光纤光频双向比对,50 km频率比对稳定度秒稳达到1.2×10-16,4万秒稳定度达到1.3×10-21.最新进展为在860 km实地光纤上实现了稳定度2×10-19@200 s的光频传递.
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