Phase Alignment of an Array Optical Telescope System Using Balanced Detection

Y Li, Q Wang, Y Huang, R Ma - Micromachines, 2023 - mdpi.com
Differential phase shift keying (DPSK) modulation and multi-aperture receiving are effective
means for suppressing flickering, deviation, and fragmentation of the light spot by …

Highest-Speed Modulators Enabling High-Capacity Free Space Optical Communications at low SNR

L Kulmer, Y Horst, BI Bitachon, M Destraz… - Journal of Lightwave …, 2024 - opg.optica.org
Free-space optical satellite-earth links often operate at the SNR limit. We show that under
low SNR conditions it is more favorable to operate at higher speeds with lower order …

Mitigation of scintillation in FSOC using RSOA-based spectrum-sliced incoherent light

D Lee, VV Mai, H Kim - IEEE Photonics Technology Letters, 2021 - ieeexplore.ieee.org
We propose and experimentally demonstrate the mitigation of adverse effects of scintillation
using a spectrum-sliced incoherent light source based on gain-saturated reflective …

Performance evaluation of direct-detection coherent receiver array for free-space communications with full-link simulation

Z Yu, R Cai, Z Wu, H He, H Jiang, X Feng, A Zheng… - Optics …, 2020 - Elsevier
Performance of the direct-detection coherent receiver array for free-space optical (FSO)
communications is evaluated with a full-link simulation model. This FSO full-link model (from …

Influence of atmospheric turbulence on coherent source in a horizontal long-distance laser link

Q Wang, S Yu, Y Zhou, L Tan, J Ma - Optics & Laser Technology, 2020 - Elsevier
In coherent optical communication, the application of linearly polarized light can greatly
improve communication sensitivity and communication capacity. However, when a laser …

Experimental investigation of mode diversity reception using an optical turbulence generator and digital holography

V van Vliet, M van den Hout… - 2022 European …, 2022 - ieeexplore.ieee.org
Mode diversity reception is experimentally investigated using an optical turbulence
generator, off-axis digital holography, and digital demultiplexing. The results confirm …

Seven-aperture direct-detection receiver for free-space optical communication systems

MN Thi, V Mai, H Kim - Optical Fiber Communication Conference, 2022 - opg.optica.org
We experimentally demonstrate a free-space optical communication system utilizing seven-
aperture direct-detection receiver. We estimate the instantaneous SNR from the AC-coupled …

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 …

Experimental demonstration of adaptive optics correction of the external aberrations for distributed fiber laser array

C Geng, F Zou, F Li, G Huang, J Zuo, J Liu, Z Fan… - IEEE …, 2021 - ieeexplore.ieee.org
A novel method of pre-compensating the phase distortions outside the fiber laser array
based on active integrated wavefront sensing is proposed and demonstrated …

[PDF][PDF] 多孔径接收相干合束系统性能研究

劳陈哲, 孙建锋, 周煜, 卢智勇, 李佳蔚 - Chinese Journal of …, 2019 - researching.cn
摘要为了减小大气湍流引起的星地激光通信系统的性能衰落, 采用基于光纤相干合束的多孔径
接收方案. 针对典型的星地相干激光通信模型, 给出了通信系统的灵敏度和误码率随多孔径接收 …