Paper 14090-50
Paper 14090-50
Compact frequency-stabilized diode laser module for quantum technology applications
14 April 2026 • 18:10 - 20:00 CEST | Galerie Erasme (Niveau/Level 0)
Abstract
The recent emergence of quantum technologies in the commercial market brings the challenge of scaling up their production to meet future demands. To this end, it is necessary to establish a supply chain of components with a high technological value that are increasingly affordable, more robust, and simpler to operate. We present a laser module specifically designed to provide a stable and reliable source of coherent light in the visible/IR region for quantum technologies based on atomic, molecular, and optical (AMO) platforms and developed during the EIC project AQLAS (Advanced lasers for quantum technologies). The device integrates a laser source based on a modified Littrow configuration [1,2], an optical frequency discriminator (OFD) as frequency reference, and all necessary electronics within a single 19-inch 3U rack box, delivering a laser beam through an optical fiber ready for applications such as precision spectroscopy and laser cooling. Our first prototype delivers laser light with a linewidth on the order of 10kHz over 1 second and 1MHz over 1.5 hours in a laboratory environment. We illustrate the latest results in the design and characterization of our laser as well as the most recent results obtained applying our device to quantum technologies.
[1] L. Duca, E. Perego, F. Berto, C. Sias, "Design of a Littrow-type diode laser with independent control of cavity length and grating rotation" Opt. Lett. 46, 2840 (2021).
[2] C. Sias, L. Duca, E. Perego, patents US 12,132,291 B2; JP7457723B2; IT102019000002013.
Presenter
Istituto Nazionale di Ricerca Metrologica (Italy)
Dr. Carlo Sias is a senior researcher at the Italian metrological institute INRiM and associate member of the European Laboratory for Nonlinear Spectroscopy (LENS) in Sesto Fiorentino, Italy.
He has 20 years of experience in quantum technologies with ions, atoms, photons. Since 2015 he leads a research group working on experiments with ultracold atoms and trapped ions, and his group realized the first ion trapping experiment in Italy. He has received several research grants at a national and European level, including an ERC, and an EIC Transition project. He is co-author of more than 30 research articles in international journals including Nature, Science, Nature Physics, PRL, and he is co-inventor of a new laser design for quantum technologies.