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arXiv · 2202.11972

Frequency noise characterization of diode lasers for vapor cell clocks applications

Gaspare Antona·Michele Gozzelino·Salvatore Micalizio·Claudio E. Calosso·Giovanni A. Costanzo·Filippo Levi
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Abstract

The knowledge of the frequency noise spectrum of a diode laser is of interest in several high resolution experiments. Specifically, in laser-pumped vapor cell clocks, it is well established that the laser frequency noise plays a role in affecting the clock performances. It is then important to characterize the frequency noise of a diode laser, especially since such measurements are rarely found in the literature and hardly ever provided by vendors. In this paper, we describe a technique based on a frequency-to-voltage converter that transforms the laser frequency fluctuations into voltage fluctuations. In this way, it is possible to characterize the laser frequency noise power spectral density in a wide range of Fourier frequencies, as required in cell clock applications.

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Gaspare Antona, Michele Gozzelino, Salvatore Micalizio, Claudio E. Calosso, Giovanni A. Costanzo, Filippo Levi. 2022-10-12. Frequency noise characterization of diode lasers for vapor cell clocks applications. https://doi.org/10.5281/zenodo.6245910

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