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arXiv · 2405.12770

All-fiber, near-infrared, laser system at 780nm for atom cooling

Matteo Marchesini·Michelangelo Dondi·Leonardo Rossi·Gabriele Bolognini·Marco Prevedelli·Francesco Minardi
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Abstract

One of the prominent platforms for quantum technologies, cold atoms require reliable laser systems. We present the design, implementation, and characterization of a simple, compact, and economical laser system at 780 nm, entirely based on fiber components. Two semiconductor lasers at 1560 nm are amplified in a single Erbium-doped fiber amplifier and frequency-doubled in a periodically-poled lithium niobate crystal. We characterize the amplitude noise and the linewidths of the lasers, as well as the SHG efficiency. With a rms relative amplitude noise of 3$\times$10$^{-4}$ at 1 s and linewidths below 1 MHz, our system is suitable for cooling and trapping of Rb atoms.

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Matteo Marchesini, Michelangelo Dondi, Leonardo Rossi, Gabriele Bolognini, Marco Prevedelli, Francesco Minardi. 2024-07-17. All-fiber, near-infrared, laser system at 780nm for atom cooling. https://doi.org/10.1364/optcon.525738

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