Alma Mater Studiorum - Università di Bologna presented a talk of their work on an " All-fiber, near-infrared, laser system at 780nm for atom cooling" at the Italian Conference on Optics and Photonics in Florence, Italy.
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 3×10−4 at 1 s and linewidths below 1 MHz, our system is suitable for cooling and trapping of Rb atoms.
By M. Marchesini, M. Dondi, L. Rossi, G. Bolognini, M. Prevedelli and F. Minardi