M.S. Aleynikov

Al’manac of Modern Metrology № 2 (10) 2017, pages 180–196

In frequency standards of the fountain type along with basic noise due to fluctuation in measurements of the inner state of working atoms there are technical noises due to noises of laser and detection systems and the system of forming an interrogated signal. The performed analysis among obtained results of the metrological research in some laboratories of the world shows that particularly the noise of the interrogated signal is a dominant factor limiting a stability of such standards. Designated problem is studied in detailed way in this article and solutions in the frame of the analysis of two models of the interrogated signal are proposed.

Key words: atomic standard, fundamental noise, technical noises, frequency of clock transfer, quantum system of standard, Rabi method, Ramsey method, two models of SHF synthesizer.

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