1. Realization of a pulsed optically pumped Rb clock with a frequency stability below 10-15.
- Author
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Gozzelino, Michele, Micalizio, Salvatore, Calosso, Claudio E., Belfi, Jacopo, Sapia, Adalberto, Gioia, Marina, and Levi, Filippo
- Subjects
FREQUENCY stability ,MASERS ,FREQUENCY standards ,LASER pulses ,ATOMIC clocks ,OPTICS - Abstract
We present the frequency stability performances of a vapor cell Rb clock based on the pulsed optically pumping (POP) technique. The clock has been developed in the frame of a collaboration between INRIM and Leonardo SpA, aiming to realize a space-qualified POP frequency standard. The results here reported were obtained with an engineered physics package, specifically designed for space applications, joint to laboratory-grade optics and electronics. The measured frequency stability expressed in terms of Allan deviation is 1.2 × 10 - 13 at 1s and achieves the value of 6 × 10 - 16 for integration times of 40000 s (drift removed). This is, to our knowledge, a record result for a vapor-cell frequency standard. In the paper, we show that in order to get this result, a careful stabilization of microwave and laser pulses is required. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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