Paper 14100-75
Paper 14100-75
Photonic Integrated Circuits for Free-Space Optical Communication Systems
14 April 2026 • 18:10 - 20:00 CEST | Galerie Erasme (Niveau/Level 0)
Abstract
Free-space optical communication (FSOC) enables high-capacity, secure links without fiber infrastructure, operating in unlicensed optical bands. Most FSOC systems use the near-infrared (NIR) range, but extending operation to the mid-infrared (MIR) can reduce scattering and improve performance in adverse conditions. This work presents integrated FSOC solutions across 1.55 µm, 3-5 µm, and 8-12 µm bands. The NIR system uses InP-based transmitters and receivers with DBR lasers, electro-absorption modulators, and AWG multiplexers, achieving 10 Gb/s transmission. The MIR system employs hybrid-integrated, directly modulated quantum cascade lasers on a Ge-on-Si platform, combined via MMI or AWG structures, with integrated detectors supporting up to 1 Gb/s per channel.
This research was supported by the National Centre for Research and Development through project FSOC (FENG.01.01-IP.01-A0MR/24-00)
Presenter
Krzysztof Anders
Warsaw Univ. of Technology (Poland), VIGO Photonics S.A. (Poland), LightHouse sp. z o.o. (Poland)
Since 2009, he has been employed at the Institute of Microelectronics and Optoelectronics of the Warsaw University of Technology (WUT) as a research and scientific assistant and, from 2021 at Vigo Photonics S.A (as a Integrated Photonics Team Manager from 2024). He is a member of the board of LightHouse sp. z o. o., a spin-off company of WUT, founded in 2022, implementing R&D sensor systems based on photonic integrated circuits. Expert in the field of optoelectronic systems based on fiber optic photonics and integrated photonics, experienced in the field of integrated and fiber optic photonics as well as spectroscopy of solids.