The realization of high-frequency unipolar quantum optoelectronic devices enables the demonstration of high bitrate free space data transmission in the second atmospheric window. Data-bits are written onto the laser emission using a large bandwidth amplitude modulator that operates by shifting the absorption of an optical transition in and out of the laser frequency.
@article{arxiv.2110.06572,
title = {10 Gbit/s free space data transmission at 9 $\mu$m wavelength with unipolar quantum optoelectronics},
author = {Hamza Dely and Thomas Bonazzi and Olivier Spitz and Etienne Rodriguez and Djamal Gacemi and Yanko Todorov and Konstantinos Pantzas and Grégoire Beaudoin and Isabelle Sagnes and Lianhe Li and Alexander Davies and Edmund Linfield and Frédéric Grillot and Angela Vasanelli and Carlo Sirtori},
journal= {arXiv preprint arXiv:2110.06572},
year = {2021}
}