A Cryogenic Sapphire Resonator Oscillator with 1e-16 mid-term fractional frequency stability

Abstract

We report in this letter the outstanding frequency stability performances of an autonomous cryogenique sapphire oscillator presenting a flicker frequency noise floor below 2e-16 near 1,000 s of integration time and a long term Allan Deviation (ADEV) limited by a random walk process of 1e-18/sqr(tau). The frequency stability qualification at this level called for the implementation of sophisticated instrumentation associated with ultra-stable frequency references and ad hoq averaging and correlation methods.

arXiv comment4 pages, 2 figures

References in corpus (7)

• Optical clock intercomparison with $6\times 10^{-19}$ precision in one hour
• Tests of relativity using a microwave resonator
• Searching for Scalar Dark Matter via Coupling to Fundamental Constants with Photonic, Atomic and Mechanical Oscillators
• Long Term Operation and Performance of Cryogenic Sapphire Oscillators
• The Impact of Frequency Standards on Coherence in VLBI at the Highest Frequencies
• Frequency Stability Measurement of Cryogenic Sapphire Oscillators with a Multichannel Tracking DDS and the Two-Sample Covariance
• Influence of the ESR saturation on the power sensitivity of cryogenic sapphire resonators

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