ELISA: A cryocooled 10 GHz oscillator with 10 − 15 frequency stability

This article reports the design, the breadboarding, and the validation of an ultrastable cryogenic sapphire oscillator operated in an autonomous cryocooler. The objective of this project was to demonstrate the feasibility of a frequency stability of 3 × 10 − 15 between 1 and 1000 s for the European...

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Bibliographic Details
Published in:Review of scientific instruments 2010-02, Vol.81 (2), p.025102-025102-7
Main Authors: Grop, S., Bourgeois, P. Y., Bazin, N., Kersalé, Y., Rubiola, E., Langham, C., Oxborrow, M., Clapton, D., Walker, S., De Vicente, J., Giordano, V.
Format: Article
Language:English
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Summary:This article reports the design, the breadboarding, and the validation of an ultrastable cryogenic sapphire oscillator operated in an autonomous cryocooler. The objective of this project was to demonstrate the feasibility of a frequency stability of 3 × 10 − 15 between 1 and 1000 s for the European Space Agency deep space stations. This represents the lowest fractional frequency instability ever achieved with cryocoolers. The preliminary results presented in this paper validate the design we adopted for the sapphire resonator, the cold source, and the oscillator loop.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3290631