28 citations · 75 across the 10 of their papers we have counts for
11 papers
Dynamic thermal sensitivity of microwave cryogenic sapphire resonator
Mohamed-Yacine Hachani, Christophe Fluhr, Benoit Dubois +3
We have discovered a memory effect in the temperature sensitivity of a cryogenic sapphire microwave resonator, at the heart of the ultra-stable Cryogenic Sapphire Oscillators (CSOs…
A Cryogenic Sapphire Resonator Oscillator with 1e-16 mid-term fractional frequency stability
Christophe Fluhr, Benoit Dubois, Claudio E. Calosso +3
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 ne…
Reliability and Reproducibility of the Cryogenic Sapphire Oscillator Technology
Christophe Fluhr, Benoît Dubois, Guillaume Le Tetu +4
The cryogenic sapphire oscillator (CSO) is a highly specialized machine, which delivers a reference signal exhibiting the lowest frequency fluctuations. For the best units, the All…
Magnetic sensitivity of the Microwave Cryogenic Sapphire Oscillator
Vincent Giordano, Christophe Fluhr, Benoit Dubois
The Cryogenic Sapphire Oscillator is today recognized for its unprecedented frequency stability, mainly coming from the exceptional physical properties of its resonator made in a h…
KLTS: A rigorous method to compute the confidence intervals for the Three-Cornered Hat and for Groslambert Covariance
Éric Lantz, Claudio E. Calosso, Enrico Rubiola +4
The three-cornered hat / Groslambert Covariance methods are widely used to estimate the stability of each individual clock in a set of three, but no method gives reliable confidenc…
Frequency Stability Measurement of Cryogenic Sapphire Oscillators with a Multichannel Tracking DDS and the Two-Sample Covariance
Claudio E. Calosso, François Vernotte, Vincent Giordano +2
This article shows the first measurement of three 100 MHz signals exhibiting fluctuations from 2E-16 to parts in 1E-15 for integration time tau between 1 s and 1 day. Such stable s…
Photonic Generation of High Power, Ultrastable Microwave Signals by Vernier Effect in a Femtosecond Laser Frequency Comb
Khaldoun Saleh, Jacques Millo, Baptiste Marechal +5
Optical frequency division of an ultrastable laser to the microwave frequency range by an optical frequency comb has allowed the generation of microwave signals with unprecedently…
Characterization of Zero-Bias Microwave Diode Power Detectors at Cryogenic Temperature
Vincent Giordano, Christophe Fluhr, Benoît Dubois +1
We present the characterization of commercial tunnel diode low-level microwave power detectors at room and cryogenic temperatures. The sensitivity as well as the output voltage noi…
Characterization of the individual short-term frequency stability of Cryogenic Sapphire Oscillators at the 1e-16 level
Christophe Fluhr, Serge Grop, Benoît Dubois +3
We present the characterisation of three Cryogenic Sapphire Oscillators using the three-corner-hat method. Easily implemented with commercial components and instruments, this metho…
Tests of Sapphire Crystals Produced with Different Growth Processes for Ultra-stable Microwave Oscillators
Vincent Giordano, Christophe Fluhr, Serge Grop +1
We present the characterization of 8-12 GHz whispering gallery mode resonators machined in high-quality sapphire crystals elaborated with different growth techniques. These microwa…
Ultra-low phase noise all-optical microwave generation setup based on commercial devices
A. Didier, J. Millo, S. Grop +5
In this paper, we present a very simple design based on commercial devices for the all-optical generation of ultra-low phase noise microwave signals. A commercial, fibered femtosec…