title: Pulsed optically pumped rubidium clock with high frequency-stability performance.
abstract: In this paper, we present the performance of a vapor-cell rubidium frequency standard working in the pulsed regime, in which the clock signal is represented by a Ramsey pattern observed on an optically detected laser absorption signal. The main experimental results agree with previously reported theoretical predictions. In particular, we measured a relative frequency stability of σy(τ) - 1.6 × 10(-13)τ-1/2 for integration times, τ, up to 200 s, which represents a record in short-term stability for a vapor-cell clock. We also discuss the most important physical phenomena that contribute to this result.
authors.affiliation: Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy. s.micalizio@inrim.it
authors.forename: Salvatore
authors.initials: S
authors.lastname: Micalizio
authors.forename: Aldo
authors.initials: A
authors.lastname: Godone
authors.forename: Claudio
authors.initials: C
authors.lastname: Calosso
authors.forename: Filippo
authors.initials: F
authors.lastname: Levi
authors.forename: Christoph
authors.initials: C
authors.lastname: Affolderbach
authors.forename: Florian
authors.initials: F
authors.lastname: Gruet