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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 305–310

Modulation-induced frequency shifts in a coherent-population-trapping-based atomic clock

David F. Phillips, Irina Novikova, Christine Y.-T. Wang, Ronald L. Walsworth, and Michael Crescimanno  »View Author Affiliations


JOSA B, Vol. 22, Issue 2, pp. 305-310 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000305


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Abstract

We investigate systematic errors associated with a common modulation technique used for phase-sensitive detection of a coherent-population-trapping (CPT) resonance. In particular, we show that modification of the CPT resonance line shape due to the presence of off-resonant fields leads to frequency shifts that may limit the stability of CPT-based atomic clocks. We also demonstrate that an alternative demodulation technique greatly reduces these effects.

© 2005 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.3690) Atomic and molecular physics : Line shapes and shifts
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(300.6380) Spectroscopy : Spectroscopy, modulation

Citation
David F. Phillips, Irina Novikova, Christine Y.-T. Wang, Ronald L. Walsworth, and Michael Crescimanno, "Modulation-induced frequency shifts in a coherent-population-trapping-based atomic clock," J. Opt. Soc. Am. B 22, 305-310 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-2-305

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