Faculté des sciences

Pulsed Optically Pumped Rubidium Clock With High Frequency-Stability Performance

Micalizio, Salvatore ; Godone, Aldo ; Calosso, Claudio ; Levi, Filippo ; Affolderbach, Christoph ; Gruet, Florian

In: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2012, vol. 59, no. 3, p. 457-462

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... Plus

Ajouter à la liste personnelle
    Summary
    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 × 1013-1/2 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.