Results 1 to 10 of about 12,357 (334)

Flying a Micro-Drone by Dynamic Charging for Vertical Direction Using Optical Wireless Power Transmission

open access: yesEnergies
Micro-drones weighing less than about 200 g have a limited flight time of 5–15 min. Dynamic charging by optical wireless power transmission is a promising solution to this problem.
Tomoya Watamura   +3 more
doaj   +4 more sources

Camera-Based Safety System for Optical Wireless Power Transmission Using Dynamic Safety-Distance

open access: yesPhotonics
This paper introduces a new safety approach for Optical Wireless Power Transmission (OWPT), a technology that is integral to the new kinds of Wireless Power Transmission technology (WPT).
Chen Zuo, Tomoyuki Miyamoto
doaj   +4 more sources

Optical Wireless Power Transmission under Deep Seawater Using GaInP Solar Cells

open access: yesEnergies
Optical wireless power transmission (OWPT) attracts attention because it enables wireless power transfer over longer distances than current wireless power transfer methods, irradiating laser light to a light-receiving element.
Ryusei Takahashi   +6 more
doaj   +4 more sources

Optical Wireless Power Transmission Using a GaInP Power Converter Cell under High-Power 635 nm Laser Irradiation of 53.5 W/cm2

open access: yesEnergies, 2022
Optical wireless power transmission (OWPT) system is a technology that supplies energy from remote locations, having some features such as long-distance transmission, high directivity, and no electromagnetic noise interference.
Yiu Leung Wong   +4 more
doaj   +2 more sources

Photonics-Aided 20 m Wireless Transmission of 56-GBaud OFDM Signals at 138 GHz in the D-Band for 6G Applications [PDF]

open access: yesSensors
To meet the demand for high-capacity indoor wireless access in future 6G systems, we propose and experimentally demonstrate a photonics-aided D-band wireless transmission scheme operating at 138 GHz.
Hanyu Zhang   +4 more
doaj   +2 more sources

Recent Advancement in Power-over-Fiber Technologies

open access: yesPhotonics, 2021
Power-over-fiber is a power transmission technology using optical fibers that offers various features not available in conventional power lines, such as copper wires.
Motoharu Matsuura
doaj   +1 more source

Long-Distance High-Power Wireless Optical Energy Transmission Based on VECSELs

open access: yesCrystals, 2022
Wireless charging systems are critical for safely and efficiently recharging mobile electronic devices. Current wireless charging technologies involving inductive coupling, magnetic resonance coupling, and microwave transmission are bulky, require ...
Zhuo Zhang   +10 more
doaj   +1 more source

Comprehensive Analysis of Time-Domain Hybrid PAM for Data-Rate and Distance Adaptive UWOC System

open access: yesIEEE Access, 2021
The challenge for next-generation underwater optical wireless communication systems is to develop optical transceivers that can operate with low power consumption by maximizing the transmission capacity according to the transmission distance between ...
Takahiro Kodama   +5 more
doaj   +1 more source

Advanced Progress of Optical Wireless Technologies for Power Industry: An Overview

open access: yesApplied Sciences, 2020
Optical wireless communications have attracted widespread attention in the traditional power industry because of the advantages of large spectrum resources, strong confidentiality, and freedom from traditional electromagnetic interference.
Jupeng Ding   +4 more
doaj   +1 more source

Real-Time Multi-User Video Optical Wireless Transmission Based on a Parallel Micro-LEDs Bulb

open access: yesIEEE Photonics Journal, 2021
In this work, we experimentally achieved a real-time video optical wireless transmission which can broadcast two users in different positions, simultaneously.
Zixian Wei   +9 more
doaj   +1 more source

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