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Multi-frequency telecom fibered laser system for potassium laser cooling

arXiv
Authors: Charbel Cherfan, Maxime Denis, Denis Bacquet, Michel Gamot, Samir Zemmouri, Isam Manai, Jean-François Clément, Jean-Claude Garreau, Pascal Szriftgiser, Radu Chicireanu

Year

2021

Paper ID

61707

Status

Preprint

Abstract Read

~2 min

Abstract Words

101

Citations

N/A

Abstract

We describe a compact and versatile multi-frequency laser system for laser-cooling potassium atoms, by frequency doubling a fiber-optic telecom beam $simeq 1534$ or $1540$ nm. Low-power fiber-based telecom lasers and components generate a single beam containing the cooling and repumper half frequencies, subsequently amplified by high-power amplifier. A final free-space SHG stage generates a single beam with typically 2.5 W at quasi-resonant frequencies $simeq 767$ or $770$ nm with high-quality mode and ready for laser cooling. This allowed to trap up to 4times109 41K atoms with fast loading times (2.5 s) at sub-Doppler temperatures of 16 μK. This opens promising perspectives towards versatile and transportable ultracold atom setups.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • We describe a compact and versatile multi-frequency laser system for laser-cooling potassium atoms, by frequency doubling a fiber-optic telecom beam simeq 1534 or 1540 nm.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2109.03864 [2] arXiv https://arxiv.org/abs/2109.03864 [3] Publisher https://arxiv.org/abs/2109.03864

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