Approaching the ultimate capacity limit in deep-space optical communication
, 2019 The information capacity of an optical channel under power constraints is ultimately limited by the quantum nature of transmitted signals. We discuss currently available and emerging photonic technologies whose combination can be shown theoretically to ...
Arapoglou +11 more
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Mobile free space optical communication system
SPIE Proceedings, 2008 The paper discusses a low power consumption, light weight and low cost 10MHz free-space optical communication (FSO). The system is designed for mounting on mobile platforms, with effective range of at least 50 meters. Light-Emitting Diodes (LEDs) and Laser diodes (LDs) are used in the transmitter for comparison for their relative performance in the ...
Wang, Xian, Hsu, Chi Yeh, Jin, Xiaomin
openaire +2 more sources
Physical-Layer Security in Orbital Angular Momentum Multiplexing Free-Space Optical Communications
IEEE Photonics Journal, 2016 The physical-layer security of a line-of-sight (LOS) free-space optical (FSO) link using orbital angular momentum (OAM) multiplexing is studied. We discuss the effect of atmospheric turbulence to OAM-multiplexed FSO channels.
Xiaole Sun, Ivan B. Djordjevic
doaj +1 more source
Coherent Multimode OAM Superpositions for Multidimensional Modulation
IEEE Photonics Journal, 2014 The generation, propagation, and detection of high-quality and coherently superimposed optical vortices, carrying two or more orbital angular momentum (OAM) states, is experimentally demonstrated using an optical arrangement based on spatial light ...
Jaime A. Anguita +2 more
doaj +1 more source
Frontier Progress of Unmanned Aerial Vehicles Optical Wireless Technologies
Sensors, 2020 With the continuous maturity of unmanned aerial vehicles (UAV) in materials, communications, and other related technologies, the UAV industry has developed rapidly in recent years.
Jupeng Ding +4 more
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Free Space Optical Link Utilizing a Modulated Retro-Reflector Intended for Planetary Duplex Communication Links Between an Orbiter and Surface Unit [PDF]
Presented are simulation and experimental results that provide duplex optical-free space communication links with minimal power and pointing requirements by using a modulated retro-reflector (MRR) for planetary communications.
Booth S. +5 more
core +2 more sources
Channel Correlation-Based Adaptive Power Transmission for Free-Space Optical Communications
PhotonicsFree-space optical (FSO) communication has received widespread attention as a high-bandwidth, low-latency communication technique. However, the scintillation effect caused by atmospheric turbulence leads to intensity fluctuations of the transmission ...
Bai-Shan Zhao +2 more
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Controlling the Spatial Coherence of an Optical Source Using a Spatial Filter
Applied Sciences, 2018 This paper presents the theory for controlling the spectral degree of coherence via spatial filtering. Starting with a quasi-homogeneous partially coherent source, the cross-spectral density function of the field at the output of the spatial filter is ...
Milo W. Hyde
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On Applications of Disruption Tolerant Networking to Optical Networking in Space [PDF]
, 2012 The integration of optical communication links into space networks via Disruption Tolerant Networking (DTN) is a largely unexplored area of research. Building on successful foundational work accomplished at JPL, we discuss a multi-hop multi-path network ...
Hylton, Alan Guy +3 more
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Turbulence-resistant high speed free-space optical communications using MUTC photodiodes
Results in OpticsIn free-space optical (FSO) communication systems, atmospheric turbulence induces scintillation of received optical power. Higher transmission optical power can compensate turbulence-induced scintillation and other channel attenuation.
Beibei Cui +3 more
doaj +1 more source