M. Lours

TL;DR: An overview of the work done with the Laboratoire National de Metrologie et d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble during the last five years is given, and recent studies of several systematic frequency shifts are reviewed.

TL;DR: In this paper, the authors report the first demonstration of a long-distance ultra-stable frequency dissemination in the microwave range, using an 86-km urban optical link with a fractional frequency instability of 1.3×10−15 at 1-s integration time and below 10−18 at one day.

TL;DR: The first demonstration of a long-distance ultra-stable frequency dissemination in the microwave range through an 86-km urban optical link with fractional frequency instability is reported.

TL;DR: In this article, the Dick effect for a pulsed vapor cell clock using coherent population trapping (CPT) was analyzed and the effect of free-evolution time variation and detection duration lengthening on this sensitivity was studied.

TL;DR: A novel triggered-phase transient analyzer capable of processing the microwave signal to extract the phase in a synchronous manner even in the presence of frequency modulation is developed, able to eliminate the frequency shift caused by microwave leakage without inducing significant phase transients on the interrogation signal.