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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 7 — Jul. 1, 2009
  • pp: 1315–1320

Two-photon dichroic atomic vapor laser lock using electromagnetically induced transparency and absorption

F. E. Becerra, R. T. Willis, S. L. Rolston, and L. A. Orozco  »View Author Affiliations


JOSA B, Vol. 26, Issue 7, pp. 1315-1320 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001315


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Abstract

We demonstrate a technique to lock the frequency of a laser to a transition between two excited states in Rb vapor using a two-photon process in the presence of a weak magnetic field. We use a ladder configuration from specific hyperfine sublevels of the 5 S 1 2 , 5 P 3 2 , and 5 D 5 2 levels. This atomic configuration can show electromagnetically induced transparency and absorption processes. The error signal comes from the difference in the transparency or absorption felt by the two orthogonal polarizations of the probe beam. A simplified model is in good quantitative agreement with the observed signals for the experimental parameters. We have used this technique to lock the frequency of the laser up to 1.5 GHz off atomic resonance.

© 2009 Optical Society of America

OCIS Codes
(020.7490) Atomic and molecular physics : Zeeman effect
(270.1670) Quantum optics : Coherent optical effects
(300.1030) Spectroscopy : Absorption
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 22, 2009
Revised Manuscript: May 5, 2009
Manuscript Accepted: May 5, 2009
Published: June 12, 2009

Citation
F. E. Becerra, R. T. Willis, S. L. Rolston, and L. A. Orozco, "Two-photon dichroic atomic vapor laser lock using electromagnetically induced transparency and absorption," J. Opt. Soc. Am. B 26, 1315-1320 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-7-1315

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