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 linewidth of the lasers, as well as the SHG efficiency. With an RMS relative amplitude noise of 3 x 10-4 - 4 at 1 s and linewidths below 1 MHz, our system is suitable for cooling and trapping of Rb atoms. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Marchesini, M., Dondi, M., Rossi, L., Bolognini, G., Prevedelli, M., Minardi, F. (2024). All-fiber, near-infrared, laser system at 780 nm for atom cooling. OPTICS CONTINUUM, 3(10), 1868-1879 [10.1364/OPTCON.525738].
All-fiber, near-infrared, laser system at 780 nm for atom cooling
Marchesini M.
;Dondi M.;Bolognini G.;Prevedelli M.;Minardi F.
2024
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 linewidth of the lasers, as well as the SHG efficiency. With an RMS relative amplitude noise of 3 x 10-4 - 4 at 1 s and linewidths below 1 MHz, our system is suitable for cooling and trapping of Rb atoms. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing AgreementFile | Dimensione | Formato | |
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