Results 71 to 80 of about 313,418 (192)
IEEE Photonics Journal, 2018 A 128 Gbit/s free-space laser link demonstration has been presented. We use a simulated atmosphere system with a tunable 1 km equivalent weak turbulence channel. Eye diagrams and constellation diagrams were observed.
Xianzhu Liu +9 more
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Modelization and Characterization of a CMOS Camera as an Optical Real-Time Oscilloscope
IEEE Photonics Journal, 2020 Complementary Metal-Oxide Semiconductor (CMOS) camera sensors are embedded in many consumer electronics products: thanks to the Rolling Shutter (RS) readout mode, they can detect a time-varying light intensity, which is the key to realize Optical Camera ...
Giulio Cossu +2 more
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Long-Distance Quantum Communication with Entangled Photons using Satellites
, 2003 The use of satellites to distribute entangled photon pairs (and single photons) provides a unique solution for long-distance quantum communication networks. This overcomes the principle limitations of Earth-bound technology, i.e. the narrow range of some
Anton Zeilinger +5 more
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Free Space Optical Communications: An Overview
European Scientific Journal, ESJ, 2016 Bridging the so-called “last mile” in communication networks has revived keen interest in free-Space Optics (FSO), also known as fiber-free or fiberless optics, which is a technology that transports data via laser technology. It is a line-of-sight technology that currently enables optical transmission up to 2.5 Gbps of data, voice and video through the
M. N. O. Sadiku +2 more
openaire +2 more sources
Applied Physics ExpressWe report a coherent laser transmitter for free space optical communications based on multiwavelength coherent beam combining. We performed 5.6 Gbps free-space optical communications using a two-element optical phased array with three wavelengths ...
Eisuke Haraguchi +6 more
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Feasibility of underwater free space quantum key distribution
, 2014 We investigate the optical absorption and scattering properties of underwater media pertinent to our underwater free space quantum key distribution (QKD) channel model.
Gu, Yong-Jian +3 more
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Signed Optical Quadrature Spatial Modulation in Free Space Optical Communication
Guangtongxin yanjiu【Objective】Aiming at the problems of low spectral efficiency and limited system throughput in Optical Quadrature Spatial Modulation (OQSM), a Signed Optical Quadrature Spatial Modulation (SOQSM) scheme is proposed in Free Space Optical Communication ...
ZHAO Hui +4 more
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4 m/100 Gb/s Optical Wireless Communication Based on Far L–Band Injection Locked Quantum-Dash Laser
IEEE Photonics Journal, 2017 An indoor 100 Gb/s free space optical communication link using an injection locked ∼1621 nm quantum-dash laser has been experimentally demonstrated.
Muhammad Talal Ali Khan +6 more
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Infrared Free Space Communication - The Autonomous Testing of Free Space Infrared Communication [PDF]
Fiber optics has been a winning player in the game of high-speed communication and data transfer in cable connections. Yet, in free space RF has been the repeated choice of communication medium of the space industry.
Heldman, Christopher
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The Journal of EngineeringA visible light positioning (VLP) system for multi‐cell networks based on multi‐colour LED that combines frequency division multiplexing with the received signal strength and a trilateration method is proposed. First, it employs experimental measurements
R. A. Martinez‐Ciro +3 more
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