Abstract:
The implementation of free-space optical communication and sensing systems at mid-IR wavelengths represents a critical advancement for next-generation high-speed communication networks, offering a robust solution for environments where traditional radio frequency (RF) and near-IR systems face significant limitations. Here we report on our recent advancements in free-space optical communication and sensing using mid-IR quantum cascade lasers (QCLs). Two setups are discussed, one using a QCL comb for optical communication in the 4-μm atmospheric transparency window and one LIDAR based on single-mode cw QCL for range finding and air quality analysis. Experimental results demonstrating few-photon coherent detection will be shown.
Authors: Simone Borri, Tecla Gabbrielli, Jacopo Pelini, Luigi Consolino, Davide Mazzotti, Lorenzo Mischi, Nicola Corrias, Giovanni Bianchini, Paolo De Natale, Francesco Cappelli
Publication location: Proc. SPIE 13376, Quantum Sensing and Nano Electronics and Photonics XXI
Date of publication: 21 March 2025
D.O.I: https://doi.org/10.1117/12.3050483
How to cite this article: Simone Borri, Tecla Gabbrielli, Jacopo Pelini, Luigi Consolino, Davide Mazzotti, Lorenzo Mischi, Nicola Corrias, Giovanni Bianchini, Paolo De Natale, Francesco Cappelli, “Free-space communication and remote sensing using mid-infrared quantum cascade lasers down to few-photon light level,” Proc. SPIE 13376, Quantum Sensing and Nano Electronics and Photonics XXI, 1337603 (21 March 2025); https://doi.org/10.1117/12.3050483
