Dynamic regime of coherent population trapping and optimization of frequency modulation parameters in atomic clocks

V. I. Yudin, A. V. Taichenachev, M. Yu Basalaev, D. V. Kovalenko

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13 Citations (Scopus)

Abstract

We theoretically investigate the dynamic regime of coherent population trapping (CPT) in the presence of frequency modulation (FM). We have formulated the criteria for quasi-stationary (adiabatic) and dynamic (non-adiabatic) responses of atomic system driven by this FM. Using the density matrix formalism for Λ system, the error signal is exactly calculated and optimized. It is shown that the optimal FM parameters correspond to the dynamic regime of atomic-field interaction, which significantly differs from conventional description of CPT resonances in the frame of quasi-stationary approach (under small modulation frequency). Obtained theoretical results are in good qualitative agreement with different experiments. Also we have found CPT-analogue of Pound-Driver-Hall regime of frequency stabilization.

Original languageEnglish
Pages (from-to)2742-2751
Number of pages10
JournalOptics Express
Volume25
Issue number3
DOIs
Publication statusPublished - 6 Feb 2017

Keywords

  • SPECTROSCOPY
  • PERFORMANCE
  • RESONANCES
  • VAPOR
  • LOOP

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