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Optical wireless power transmission of applying OAM and adaptive optics
2019 24th Microoptics Conference (MOC), 2019With the spread of 5G, studies on OAM multiplex transmission that enhances frequency utilization efficiency in wireless communications are progressing, and a technology that can supply power while realizing these is required. In this study, we tried to improve power loss and transmission characteristics due to atmospheric turbulence by applying ...
Miki Tatsutomi, Kayo Ogawa
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Optical wireless power transmission at long wavelengths
2011 International Conference on Space Optical Systems and Applications (ICSOS), 2011Lasers diodes convert electrical power to a highly collimated beam of Optical power that may propagate over meters with insignificant losses. At the the other end of this optical link Photovoltaic diodes may be used to retrieve electrical power. This point-to-point wireless power transmission is safe if all the optical power is accounted for using an ...
Aakash Sahai, David Graham
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Optical wireless power transmission using VCSELs
Semiconductor Lasers and Laser Dynamics VIII, 2018The power transmission technology to the equipment is remained behind in contrast to the progress of wireless communication. The existence of wiring and its connections greatly restrict the location of use, installation, maintenance, and configuration of the equipment.
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Transmission Power Analysis of Optical Wireless Based Mobile Healthcare Systems
International Journal of Wireless Information Networks, 2012In the context of healthcare monitoring, it is necessary to transmit vital information from the patient to an interface managed by the hospital staff. In this work we consider a system where the patient can move within a hospital room and the data collected by sensors are transmitted to a distant receiver placed on the ceiling.
Seyed Sina Torkestani +4 more
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Improvement of InGaN power converters for optical wireless power transmission
Japanese Journal of Applied PhysicsAbstract InGaN power converters, which can absorb near-ultraviolet light with a low attenuation coefficient in water, are expected to be used for underwater optical wireless power transmission. To improve photovoltaic conversion efficiency (PCE) under high-power near-ultraviolet laser illumination, we fabricated ...
Junichi Suzuki +16 more
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Self-powered wireless optical transmission of mechanical agitation signals
Nano Energy, 2018Abstract The ubiquitous sensors have accelerated the realization of Internet of Things (IoT) but also raised challenges to the current overcrowding radio frequency (RF) based communications. The optical wireless communication (OWC) that utilizes the wide optic bandwidth can well solve the spectrum crisis and is an appealing complementary solution to ...
Ding, Wenbo +7 more
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Optical field manipulation for highly efficient wireless laser power transmission
2020 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2020We investigate the influence of laser incident at different angles on the output characteristics of PV cells. Meanwhile an inverse design method is proposed that generates optical field from the geometry of photovoltaic (PV) cells by using a spatial light modulator (SLM).
Peiyuan Xu, Wenjia Zhang, Zuyuan He
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High Power and Long Distance Underwater Optical Wireless Power Transmission
Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023Tomoyuki Miyamoto +2 more
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Optimization for Compact and High Output LED-Based Optical Wireless Power Transmission System
Photonics, 2022Tomoyuki Miyamoto +2 more
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