DocumentCode
2840943
Title
Improved performance of the superconducting cavity maser at short measuring times [atomic frequency standards]
Author
Wang, R.T. ; Dick, G.J.
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear
1990
fDate
23-25 May 1990
Firstpage
89
Lastpage
93
Abstract
Measurements on a superconducting cavity maser oscillator are presented which show a frequency stability of parts in 1015 for times from 1 second to 1000 seconds. A phase noise of approximately -80 dB/f3, where f is frequency, is shown. The measured stability at a 1 second interval is 10 times better than that of a hydrogen maser, and phase noise at 8 GHz is more than 20 dB below that of a multiplied quartz crystal oscillator
Keywords
cavity resonators; frequency measurement; frequency stability; masers; measurement standards; random noise; superconducting devices; 8 GHz; atomic frequency standards; frequency stability; phase noise; superconducting cavity maser; Atomic measurements; Frequency measurement; Hydrogen; Masers; Microwave oscillators; Stability; Superconducting device noise; Superconducting magnets; Superconducting microwave devices; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Frequency Control, 1990., Proceedings of the 44th Annual Symposium on
Conference_Location
Baltimore, MD
Type
conf
DOI
10.1109/FREQ.1990.177485
Filename
177485
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