Unprecedented long-term frequency stability with a microwave resonator oscillator

Serge Grop; Wolfgang Schafer; Pierre-Yves Bourgeois; Yann Kersale; Mark Oxborrow; Enrico Rubiola; Vincent Giordano

doi:10.1109/TUFFC.2011.1998

Unprecedented long-term frequency stability with a microwave resonator oscillator

IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Aug;58(8):1694-7. doi: 10.1109/TUFFC.2011.1998.

Authors

Serge Grop, Wolfgang Schafer, Pierre-Yves Bourgeois, Yann Kersale, Mark Oxborrow, Enrico Rubiola, Vincent Giordano

PMID: 21859590
DOI: 10.1109/TUFFC.2011.1998

Abstract

This article reports on the long-term frequency stability characterization of a new type of cryogenic sapphire oscillator using an autonomous pulse-tube cryocooler as its cold source. This new design enables a relative frequency stability of better than 4.5 x 10(-15) over one day of integration. To the best of our knowledge, this represents the best long-term frequency stability ever obtained with a signal source based on a macroscopic resonator.

Publication types

Letter
Research Support, Non-U.S. Gov't