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Conference Papers Year : 2011

Cryogenic sapphire microwave oscillators for space, metrology and scientific applications

Abstract

We recently demonstrated a Cryogenic Sapphire Oscillator (CSO) presenting a short term frequency stability better than 3×10-15 for 1s≤τ<1000s and achieving 4.5×10-15 for one day integration. This CSO incorporates a pulse-tube cooler instead of a bath cryostat-thus eliminating the need for regular supplies and manual transferring of liquid helium. The advent of reliable and cryocooled CSO open the possibility to implement such an ultra-stable reference not only in metrological laboratories with liquid helium facilities but also in remote sites like base stations for space navigation, VBLI antenna sites, ...

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hal-00686959 , version 1 (04-05-2021)

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V. Giordano, S. Grop, P.-Y. Bourgeois, Y. Kersale, E. Rubiola, et al.. Cryogenic sapphire microwave oscillators for space, metrology and scientific applications. General Assembly and Scientific Symposium URSI, Aug 2011, Istambul, Turkey. pp.1-4, ⟨10.1109/URSIGASS.2011.6050311⟩. ⟨hal-00686959⟩
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