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Optics Letters

Optics Letters


  • Vol. 36, Iss. 10 — May. 15, 2011
  • pp: 1740–1742

Minimization of the temperature coefficient of resonance frequency shift in the coherent population trapping clock

Ke Deng, Xuzong Chen, and Zhong Wang  »View Author Affiliations

Optics Letters, Vol. 36, Issue 10, pp. 1740-1742 (2011)

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We studied the relationship between the frequency shift of coherent population trapping resonance and the cell temperature of Rb 85 . Results show that the temperature coefficient of the frequency shift can be reduced by buffer gas pressure adjustment and light shift optimization. When the contribution of buffer gas collision to temperature coefficient of frequency shift is less than 0.3 Hz / K , the contribution of light shift to the temperature coefficient of frequency shift becomes obvious. Under this cancelling effect, we can reduce the rate of total frequency shift to near zero.

© 2011 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.6580) Atomic and molecular physics : Stark effect
(300.6260) Spectroscopy : Spectroscopy, diode lasers

ToC Category:
Atomic and Molecular Physics

Original Manuscript: February 8, 2011
Revised Manuscript: April 10, 2011
Manuscript Accepted: April 10, 2011
Published: May 4, 2011

Ke Deng, Xuzong Chen, and Zhong Wang, "Minimization of the temperature coefficient of resonance frequency shift in the coherent population trapping clock," Opt. Lett. 36, 1740-1742 (2011)

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