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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 21 — Jul. 20, 2012
  • pp: 5080–5084

Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution

Weliton Soares Martins, Hugo L. D. de S. Cavalcante, Thierry Passerat de Silans, Marcos Oriá, and Martine Chevrollier  »View Author Affiliations

Applied Optics, Vol. 51, Issue 21, pp. 5080-5084 (2012)

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Avoiding laser frequency drifts is a key issue in many atomic physics experiments. Several techniques have been developed to lock the laser frequency using sub-Doppler dispersive atomic lineshapes as error signals in a feedback loop. We propose here a two-beam technique that uses nonlinear properties of an atomic vapor around sharp resonances to produce sub-Doppler dispersivelike lineshapes that can be used as error signals. Our simple and robust technique has the advantage of not needing either modulation or magnetic fields.

© 2012 Optical Society of America

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(260.5950) Physical optics : Self-focusing
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6460) Spectroscopy : Spectroscopy, saturation
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 11, 2012
Revised Manuscript: May 26, 2012
Manuscript Accepted: May 29, 2012
Published: July 12, 2012

Weliton Soares Martins, Hugo L. D. de S. Cavalcante, Thierry Passerat de Silans, Marcos Oriá, and Martine Chevrollier, "Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution," Appl. Opt. 51, 5080-5084 (2012)

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