Months-long real-time generation of a time scale based on an optical clock
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DOI: 10.1038/s41598-018-22423-5
Abstract: Time scales consistently provide precise time stamps and time intervals by combining atomic frequency standards with a reliable local oscillator. Optical frequency standards, however, have not been applied to the generation of time scales, although… read more here.
Keywords: generation; time scale; frequency standards; time ... See more keywords
Compact 852 nm Faraday optical frequency standard
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DOI: 10.1063/5.0236915
Abstract: Optical clocks with high precision are practical and necessary in atomic physics, geodesy, gravitational wave measurement, etc. Transportability and environmental adaptability are two key indicators to measure the performance of frequency standards. Here, we utilized… read more here.
Keywords: frequency standards; faraday optical; optical frequency; faraday laser ... See more keywords
Evaluation of the relativistic redshift in frequency standards at KRISS
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DOI: 10.1088/1681-7575/ad1ca9
Abstract: Relativistic redshift correction should be accurately considered in frequency comparisons between frequency standards. In this study, we evaluated the relativistic redshift at Korea Research Institute of Standards and Science (KRISS) using three different methods, depending… read more here.
Keywords: redshift; relativistic redshift; standards kriss; evaluation relativistic ... See more keywords
On the Potential Application of Direct Digital Synthesis in the Development of Frequency Synthesizers for Quantum Frequency Standards
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DOI: 10.1134/s1064226918110086
Abstract: A new method for generation of the output signal of a frequency synthesizer of quantum frequency standards is considered. It is demonstrated that this method provides an opportunity to enhance spectral characteristics of the output… read more here.
Keywords: frequency; frequency standards; quantum frequency; output ... See more keywords