Real-time demonstration of two-aperture coherent digital combining free-space optical transmission with a real-valued MIMO adaptive equalizer
C Ju, N Liu, D Wang, D Wang, J Yu, Y Qiu - Optics Letters, 2024 - opg.optica.org
Compared with the single-aperture system, the multi-aperture coherent digital combining
system has the technical advantage of the effective mitigation of deep fading under strong …
system has the technical advantage of the effective mitigation of deep fading under strong …
Enhanced frame synchronization and carrier recovery in coherent FSO communication: a pseudo-random and cyclic QPSK approach
L Wang, K Liu, S Zhang, S Ding - Optics Express, 2024 - opg.optica.org
To alleviate the impact of atmospheric turbulence on receiver carrier recovery in free-space
optical communication, this study introduces a novel frame synchronization and carrier …
optical communication, this study introduces a novel frame synchronization and carrier …
Robust free space optical communication receiver based on a spatial mode demultiplexer and a silicon photonic coherent combining circuit
V Billault, J Bourderionnet, L Leviandier… - Free-Space Laser …, 2022 - spiedigitallibrary.org
Mitigation of atmospheric turbulence is a major challenge in optical wireless communication,
especially for optical feeder links. In this paper, we present a free space optical (FSO) mode …
especially for optical feeder links. In this paper, we present a free space optical (FSO) mode …
Training-aided joint frame and frequency synchronization for free space optical communication signals with low OSNR
Q Cheng, S Cui, K Zhou, D Liu - Optics Communications, 2020 - Elsevier
In the photon-starving free space optical communication (FSOC) systems the optical signals
received often exhibit a very low OSNR due to the large transmission loss. Thus the digital …
received often exhibit a very low OSNR due to the large transmission loss. Thus the digital …
Flexible phase synchronization for wireless optical coherent communication system with adaptive fractionally-spaced blind equalization combined with adaptive …
SP Zhang, LY Tan, J Ma - IEEE Photonics Journal, 2023 - ieeexplore.ieee.org
Wireless optical coherent communication can be used as the backbone supporting
technology of air-space-ground-sea-integrated network. In wireless optical coherent …
technology of air-space-ground-sea-integrated network. In wireless optical coherent …
Photonic integrated coherent beam combiner based on MMI and the SPGD algorithm
S Jiao, J Qiu, G Zhao, J Wu - Applied Optics, 2024 - opg.optica.org
Atmospheric turbulence severely degrades the optical wavefront of a propagating beam,
which greatly reduces the coupling efficiency of free-space optical (FSO) receivers. Among …
which greatly reduces the coupling efficiency of free-space optical (FSO) receivers. Among …
Evaluation of blind diversity combining of severely faded signals for high-speed free-space optical communication under atmospheric turbulence
M Arikawa, Y Ono, T Ito - 2017 European Conference on Optical …, 2017 - ieeexplore.ieee.org
We experimentally evaluated performance of a mode diversity receiver in severe fading
channels of emulated LEO-to-ground link. Digital combining of three modes using adaptive …
channels of emulated LEO-to-ground link. Digital combining of three modes using adaptive …
Channel correlation and BER performance analysis of coherent optical communication systems with receive diversity over moderate-to-strong non-Kolmogorov …
Y Fu, J Ma, L Tan, S Yu, G Lu - Applied Optics, 2018 - opg.optica.org
In this paper, new expressions of the channel-correlation coefficient and its components (the
large-and small-scale channel-correlation coefficients) for a plane wave are derived for a …
large-and small-scale channel-correlation coefficients) for a plane wave are derived for a …
Performance investigation of satellite-to-ground downlink optical communications employing aperture diversity combined with mode diversity
The satellite-to-ground communications systems are a significant part of the future
communications network. Meanwhile, the large capacity is also one of the goals pursued by …
communications network. Meanwhile, the large capacity is also one of the goals pursued by …
Bayesian approach to coherent combination of single photon beams
We theoretically investigate the performance of coherent beam combination of two light
beams under relative phase fluctuations in the photon starved regime. We apply a first …
beams under relative phase fluctuations in the photon starved regime. We apply a first …