Note: Pulsed optically pumped atomic clock based on a paraffin-coated cell

Haixiao Lin; Jianliao Deng; Jinda Lin; Song Zhang; Yao Hu; Yuzhu Wang

doi:10.1063/1.5030956

Note: Pulsed optically pumped atomic clock based on a paraffin-coated cell

Rev Sci Instrum. 2018 Jun;89(6):066101. doi: 10.1063/1.5030956.

Authors

Haixiao Lin¹, Jianliao Deng¹, Jinda Lin¹, Song Zhang¹, Yao Hu², Yuzhu Wang¹

Affiliations

¹ Key Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
² Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027, China.

PMID: 29960530
DOI: 10.1063/1.5030956

Abstract

We report on the implementation of a pulsed optically pumped atomic clock based on a paraffin-coated cell. The relaxation times are measured, with the longitudinal relaxation time, T₁ = 9.7 ± 0.4 ms, and the transversal relaxation time, T₂ = 0.40 ± 0.03 ms. We demonstrated that the measured frequency stability of the clock is 3.9 × 10^-13 τ^-1/2 (1 s ≤ τ ≤ 100 s) and reaches a value of 3.1 × 10^-14 for τ = 1000 s, where τ is the averaging time. This is an unprecedented result for a paraffin-coated vapor cell clock, and it makes significant contributions toward improving the performance of the wall-coated vapor cell atomic clock.