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arXiv · 1207.3808

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·Martine. Chevrollier
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Abstract

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 non-linear properties of an atomic vapor around sharp resonances to produce sub-Doppler dispersive-like lineshapes that can be used as error signals. Our simple and robust technique has the advantage of not needing either modulation or magnetic fields.

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Weliton Soares Martins, Hugo L. D. de S. Cavalcante, Thierry Passerat de Silans, Marcos Oriá, Martine. Chevrollier. 2012-07-16. Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution. https://doi.org/10.1364/ao.51.005080

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