Search Results - alireza+nooraiepour

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Time Varying Metamaterial-Enabled Directional Modulation Schemes for Physical Layer Security in Wireless Communication Links
Simulated bit-error-rate (BER) for the decoding performance of a receiver corresponding to a proposed transmission scheme. Invention Summary: With continuing advancements in wireless communication systems and emerging applications of Internet-of-Things (IoT) devices, there is an urgent need to develop physical-layer (PHY) focused...
Published: 10/21/2024   |   Inventor(s): Waheed Bajwa, Narayan Mandayam, Chung-Tse Wu, Shaghayegh Vosoughitabar, Alireza Nooraiepour
Keywords(s): Cybersecurity, Networks, Wireless
Category(s): Technology Classifications > Telecommunications & Networking, Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Electronics/Semiconductor
PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids
The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...
Published: 7/30/2024   |   Inventor(s): Payman Dehghanian, Shiyuan Wang, Li Li
Keywords(s):  
Category(s): Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment
Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 4/3/2023   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li, Jacques Albert
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources
All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 4/3/2023   |   Inventor(s): Nasser Peyghambarian, Axel Schülzgen, Li Li
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Fiber Optics, Technology Classifications > Imaging & Optics > Lasers & Other Sources