Pulsed Optically Pumped Rb clock

8th Symposium on Frequency Standards and Metrology 2015

Micalizio, S.^1 ; Levi, F.^1 ; Godone, A.^1 ; Calosso, C.E.^1 ; François, B.^1 ; Boudot, R.^2 ; Affolderbach, C.^1 ; Kang, S.^3 ; Gharavipour, M.^3 ; Gruet, F.^3 ; Mileti, G.^3

Physical Metrology Division, INRIM, Strada delle Cacce 91, Torino

10135, Italy^1

TimeandFrequency Dpt, FEMTO-ST, CNRS, Université de Franche Comté, Besançon, France^2

Laboratoire Temps-Fréquence, Université de Neuchâtel, Neuchâtel, Switzerland^3

关键词: Long-term period;    Noise source;    Optically pumped;    Rb clocks;    Stability performance;    Technological applications;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/723/1/012015/pdf
DOI  :  10.1088/1742-6596/723/1/012015

来源: IOP

【 摘 要 】

INRIM demonstrated a Rb vapour cell clock based on pulsed optical pumping (POP) with unprecedented frequency stability performances, both in the short and in the medium-long term period. In the frame of a EMRP project, we are developing a new clock based on the same POP principle but adopting solutions aimed at reducing the noise sources affecting the INRIM clock. At the same time, concerning possible technological applications, particular care are devoted in the project to reduce the size and the weight of the clock, still keeping the excellent stability of the INRIM clock. The paper resumes the main results of this activity.