Toward practical digital phase alignment for coherent beam combining in multi-aperture free space coherent optical receivers

C Rao, S Cui, Y Tu, K Zhou, D Liu - IEEE Access, 2020 - ieeexplore.ieee.org
In free space optical communication systems, multi-aperture coherent optical receivers
based on digital coherent beam combining (D-CBC) technique can provide exceptionally …

Phase alignment with minimum complexity for equal gain combining in multi-aperture free-space digital coherent optical communication receivers

Y Tu, S Cui, K Zhou, D Liu - IEEE Photonics Journal, 2020 - ieeexplore.ieee.org
Digital coherent combining (DCC) technique can increase the free space optical signal
collection area by combining the signals received by an array of small apertures in a …

Multi-aperture all-fiber active coherent beam combining for free-space optical communication receivers

Y Yang, C Geng, F Li, G Huang, X Li - Optics Express, 2017 - opg.optica.org
Multi-aperture receiver with optical combining architecture is an effective approach to
overcome the turbulent atmosphere effect on the performance of the free-space optical …

Adaptive digital combining for coherent free space optical communications with spatial diversity reception

J Sun, P Huang, Z Yao, J Guo - Optics Communications, 2019 - Elsevier
Spatial diversity reception is an effective technology to mitigate the atmospheric turbulence
effect on the performance of the coherent free space optical (FSO) communications …

Performance investigation of multi-aperture digital combining algorithm for satellite-to-ground coherent optical communication

P Xie, Y Zhao, L Guan, X Zhang, C Ju, N Liu - Optics Communications, 2023 - Elsevier
An important component of the future communication network will include satellite-to-ground
communication technology. In the meantime, the community of communication network also …

Real-time low-complexity diversity combining algorithm for free space coherent optical communication systems over atmospheric turbulence channel

K Xu, J Song, Y Li, J Chen, J Qiu, X Hong, H Guo… - Optics …, 2023 - opg.optica.org
A novel diversity combining scheme, in conjunction with the complex-valued decision-
directed least mean square (CV-DD-LMS) algorithm, is evaluated, and a real-time …

Optical phase synchronization in coherent optical beamformers for phased array receive antennas

A García García - 2009 - essay.utwente.nl
Optical phase synchronization is an important issue in coherent optical beamforming
ystems. In this kind of architectures, the optical carrier produced by a common laser is split …

Simultaneous detection of beam pointing and optical phase errors for multiple beams using a quadrant photo detector for high-efficiency coherent beam combining …

E Haraguchi, T Akiyama, T Ando… - Applied Physics …, 2019 - iopscience.iop.org
In this letter, we propose and demonstrate a technique, based on radio frequency
demodulation, for coherent beam combining (CBC) systems to simultaneously detect beam …

Stabilization of the 81-channel coherent beam combination using machine learning

D Wang, Q Du, T Zhou, D Li, R Wilcox - Optics express, 2021 - opg.optica.org
We develop a rapidly converging algorithm for stabilizing a large channel-count diffractive
optical coherent beam combination. An 81-beam combiner is controlled by a novel, machine …

Phase retrieval receivers based on alternative projections for coherent optical communications

H Chen, NK Fontaine, H Huang… - 2021 European …, 2021 - ieeexplore.ieee.org
Phase Retrieval Receivers Based on Alternative Projections for Coherent Optical
Communications Page 1 Phase Retrieval Receivers Based on Alternative Projections for …