Operational strontium optical lattice clocks

Abstract

We will report on the recent developments on two operational Sr optical lattice clocks (OLCs) at LNE-SYRTE. In particular, we will emphasize the progress made towards the realization of an optical frequency standard. We will present a nearly continuous operation of an OLC and its comparison with two atomic fountain clocks over a span of several weeks. We will also present progress made on a cavity-assisted non-destruction technique that promises to further decrease the frequency uncertainty of our OLCs.