In this article, we describe a new frequency synthesis system that includes a low phase noise cryogenic sapphire oscillator (CSO) and an H-maser to provide metrological low-noise signals to time and frequency experiments. Implementing this system as a local oscillator for a Cs cold atom fountain, a record frequency stability of 1.6x10(-14)tau(-1/2) is obtained. (c) 2005 American Institute of Physics.
Chambon, D., Bize, S., Lours, M., Narbonneau, F., Marion, H., Clairon, A., Santarelli, G., Luiten, A., & Tobar, M. (2005). Design and realization of a flywheel oscillator for advanced time and frequency metrology. Review of Scientific Instruments, 76(9), 094704-1-094704-5. https://doi.org/10.1063/1.2018567