Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Free Space Optical(FSO)"”.
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Modular Laser Combat System for Remotely Operated Vehicles: Bridging the Gap Between Computer Simulation and Live Fire
… for the construction of a simulated weapon using Free Space Optical (FSO) infrared communication. It is developed in such a way to ensure compatibility with a variety of platforms including ground and aerial vehicles, so that identical but configurable modules can be used on any vehicle that is to …
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Optomechanical and wavelength alignments of CubeSat laser communication Systems
… and governmental communities to launch space missions more quickly at lower costs, the communication subsystems of the platform are limited by a heavily regulated and overcrowded RF spectrum. Scientific instruments with increasing capabilities on CubeSats are generating massive amounts …
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Laser beacon tracking for free-space optical communication on small-satellite platforms in low-earth orbit
Free-space optical (FSO) communication, or laser communication, is capable of providing high-rate communication links, meeting the growing downlink demand of space missions, including those on small-satellite platforms. FSO communication takes advantage of the high-gain nature of narrow laser beams …
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Nonlinear optics for frequency-doubling in nanosatellite laser communication
… optics for frequency-doubling to enable free space optical (FSO) communication links to take advantage of the ability to switch between two wavelengths using one transmit module. Our analysis shows that incorporating frequency-doubling with nonlinear optics into existing communication …
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Modeling and performance evaluation of free space optical link for ground-to-train communications
… internet connection on-board fast-moving trains. Free Space Optical (FSO) Communications technology promises a bright future for various applications, due to its cost-effectiveness, ease of deployment, and huge unregulated bandwidth, which gives it an edge over contemporary technologies. However, …
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Bidirectional adaptive optics architectures for optical communication through atmospheric turbulence
Free-space optical (FSO) classical communication links can provide high data rates vital for successfully serving the world's exponentially growing demand for bandwidth, while FSO quantum key distribution (QKD) links allow information-theoretic rather than computational secure communication between …
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Optomechanical design, analysis, and testing of the nanosatellite optical downlink experiment
As space payloads are miniaturized, many companies and government agencies are fielding small satellites that can compete with traditional "monolithic" satellites. More than 250 CubeSats were launched into orbit in 2017 alone. As the density of increasingly capable small satellites in orbit …
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Physical Layer Security of Hybrid Millimeter-Wave and Free-Space Optical Systems for 5G and Beyond Networks
… requirements of 5G and beyond networks, hybrid Free-Space Optical (FSO) and millimeter Wave (mmWave) systems have emerged as a promising remedy due to the unique complementary properties against the different channel and environmental conditions. Consequently, in this dissertation, hybrid …
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Multi-Transceiver Free-Space-Optical Structures for Mobile Ad-Hoc Networks
… per-node throughput, we propose a novel &ldquo optical antenna &rdquo model that is tessellated with multiple free-space-optical (FSO) transmitter and receiver (transceiver) pairs that exploit spatial reuse of the shared medium and are capable of handling extremely high data rates using optical …
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High Capacity VCSEL Array Based Optical Wireless Links
… spectrum is not sufficient to meet this demand. Optical wireless communication (OWC) systems have the potential to overcome the rapidly increasing demand for indoor data traffic. Compared to Radio frequency (RF) wireless systems, OWC systems offer several advantages, including a larger unlicensed …
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Free-space optical networks : fade and interference mitigation and network congestion control
Optical communication through the atmospheric channel is commonly known as free-space optical (FSO) communication. When communicating through a clear FSO channel, not only is there atmospheric turbulence which results in fading of the received signal, but there may also be interference that …
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Outage prediction modelling of terrestrial free space optics for tropical region
In modern times, Free Space Optical (FSO) communication technology has become an alternative way to radio links and optical cables. FSO links provide gigabit per second data rates and unlimited bandwidth, however its availability can easily be affected by fading due to different meteorological …
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Fundamentals of Quantum Communication Networks: Scalability, Efficiency, and Distributed Quantum Machine Learning
… proposed to address the scalability challenge of free-space optical (FSO) quantum channels in the presence of blockages and environmental effects. Particularly, the utilization of a reconfigurable intelligent surface (RIS) in QCNs is proposed to maintain a line-of-sight (LoS) connection between …