Coherent free-space optical communications: opportunities and challenges

FP Guiomar, MA Fernandes, JL Nascimento… - Journal of Lightwave …, 2022 - opg.optica.org
The ever-increasing data rate demand for wireless systems is pushing the physical limits of
standalone radio-frequency communications, thus fostering the blooming of novel high …

Emulating atmospheric turbulence effects on a micro-mirror array: assessing the DMD for use with free-space-to-fibre optical connections

DM Benton, AD Ellis, Y Li, Z Hu - Engineering Research Express, 2022 - iopscience.iop.org
Emulated atmospheric turbulence effects constructed from a set of 22 Zernike modes have
been written upon a DMD micromirror array operating as a binary amplitude spatial light …

MOEMS-based lens-assisted beam steering for free-space optical communications

DA Goldman, P Serra, S Kacker… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Free-space optical communication (FSOC) systems require precise pointing, acquisition,
and tracking to send and receive optical beams for effective operation. In a lens-assisted …

Supporting quantum technologies with an ultralow-loss silicon photonics platform

M Cherchi, A Bera, A Kemppinen… - Advanced …, 2023 - spiedigitallibrary.org
Photonic integrated circuits (PICs) are expected to play a significant role in the ongoing
second quantum revolution, thanks to their stability and scalability. Still, major upgrades are …

Satellite-to-ground optical downlink model using mode mismatching multi-mode photonic lanterns

W Guo, Y Li, J Chen, T Jin, S Jiao, J Wu, J Qiu… - Optics …, 2023 - opg.optica.org
Photonics lanterns (PLs) provide an effective mode diversity solution to mitigate atmospheric
turbulence interference in free-space optical communications (FSOC). This paper presents …

Performance evaluation of the high-speed deep-space optical communication system assisted by preamplified thresholded pulse-position modulation

D Gao, T Li, Z Xie, Y He, X Han, S Jia, W Wang… - Frontiers in …, 2022 - frontiersin.org
Deep-space free-space optical (FSO) communication utilized the light wave as carriers for
information transfer which has the major benefit of small size, lightweight, and low …

Coherent combining of low-power optical signals based on optically amplified error feedback

R Larsson, J Schröder, M Karlsson, PA Andrekson - Optics Express, 2022 - opg.optica.org
In free-space optical communication links, the combining of optical signals from multiple
apertures is a well-known method to collect more power for improved sensitivity or mitigation …

Evaluation of a multimode receiver with a photonic integrated combiner for satellite to ground optical communications

V Billault, J Bourderionnet, L Leviandier… - arXiv preprint arXiv …, 2022 - arxiv.org
Multimode receivers based on spatial or modal diversity are promising architectures to
mitigate in real time the atmospheric turbulence effects for free space optical (FSO) …

High-efficiency interface between multi-mode and single-mode fibers

O Korichi, M Hiekkamäki, R Fickler - Optics Letters, 2023 - opg.optica.org
Multi-mode fibers (MMFs) and single-mode fibers (SMFs) are widely used in optical
communication networks. MMFs are the practical choice in terms of cost in applications that …

Integrated spatial light receivers based on inverse design

S Jiao, J Qiu, Y Chen, R Tao, W Guo, Y Li, J Wu - Optics Express, 2023 - opg.optica.org
Photonic integrated spatial light receivers play a crucial role in free space optical (FSO)
communication systems. In this paper, we propose a 4-channel and 6-channel spatial light …