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arXiv · 1109.1899

Robust laser frequency stabilization by serrodyne modulation

Ralf Kohlhaas·Thomas Vanderbruggen·Simon Bernon·Andrea Bertoldi·Arnaud Landragin·Philippe Bouyer
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Abstract

We report the relative frequency stabilization of a distributed feedback erbium-doped fiber laser on an optical cavity by serrodyne frequency shifting. A correction bandwidth of 2.3 MHz and a dynamic range of 220 MHz are achieved, which leads to a strong robustness against large disturbances up to high frequencies. We demonstrate that serrodyne frequency shifting reaches a higher correction bandwidth and lower relative frequency noise level compared to a standard acousto-optical modulator based scheme. Our results allow to consider promising applications in the absolute frequency stabilization of lasers on optical cavities.

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Ralf Kohlhaas, Thomas Vanderbruggen, Simon Bernon, Andrea Bertoldi, Arnaud Landragin, Philippe Bouyer. 2012-02-22. Robust laser frequency stabilization by serrodyne modulation. https://doi.org/10.1364/ol.37.001005

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