From Mirrors to Free-Space Optical Communication—Historical Aspects in Data Transmission
Future Internet, 2020 Fast communication is of high importance. Recently, increased data demand and crowded radio frequency spectrum have become crucial issues. Free-Space Optical Communication (FSOC) has diametrically changed the way people exchange information.
Magdalena Garlinska +3 more
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Laser guide stars for optical free-space communications [PDF]
SPIE Proceedings, 2017 The German Aerospace Center (DLR) and the European Southern Observatory (ESO) performed a measurement campaign together in April and July 2016 at Teide-Observatory (Tenerife), with the support of the European Space Agency (ESA), to investigate the use of laser guide stars (LGS) in ground to space optical communications.
Mata Calvo, Ramon +7 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
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Blind Detection for Serial Relays in Free Space Optical Communication Systems
Applied Sciences, 2018 Free-space optical (FSO) communication systems have attracted considerable research interest owing to its high transmission rates and its efficient solution for the last mile problem. Atmospheric turbulence degrades the performance of FSO systems.
Mohamed Elbawab +2 more
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Phase Offset Tracking for Free Space Digital Coherent Optical Communication System
Applied Sciences, 2019 The coherent receiving method can improve the sensitivity of an optical signal receiver for free space optical communication system effectively. To implement coherent receiving, the phase offset between the local laser in the receiver and the received ...
Hongwei Li +5 more
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Free-space coherent optical communication receivers implemented with photorefractive optical beam combiners [PDF]
Performance measurements are reported concerning a coherent optical communication receiver that contained an iron doped indium phosphide photorefractive beam combiner, rather than a conventional optical beam splitter.
Davidson, Frederic M.
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Performance of free space optical communication using M-array receivers at atmospheric conditions [PDF]
, 2009 : In free space optical (FSO) communication links, atmospheric parameters including absorption, scattering and turbulence have significant impacts on the quality of laser beams propagating through the atmosphere.
Ahmadi, Vahid +2 more
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Creation and characterization of vector vortex modes for classical and quantum communication
, 2017 Vector vortex beams are structured states of light that are non-separable in their polarisation and spatial mode, they are eigenmodes of free-space and many fibre systems, and have the capacity to be used as a modal basis for both classical and quantum ...
Cox, Mitchell A. +4 more
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Design and Modeling of the Properties of the Servomechanism for a Mobile Free Space Optical Link [PDF]
, 2014 The paper deals with the design of a tracking system determined for mobile free space optical link communication system. The paper also contains description of two-step method of the optical-axes pointing process, description of the basic properties of ...
Cizmar, J., Nemecek, J.
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Free-space quantum key distribution by rotation-invariant twisted photons
, 2014 Twisted photons are photons carrying a well-defined nonzero value of orbital angular momentum (OAM). The associated optical wave exhibits a helical shape of the wavefront (hence the name) and an optical vortex at the beam axis.
D'Ambrosio, Vincenzo +6 more
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