KEYWORDS: Acquisition tracking and pointing, Beam steering, Receivers, Beam divergence, Signal detection, Transmitters, Retroreflectors, Analog to digital converters, Reflection, Mirrors, Diffraction gratings
A significant challenge faced by Wireless Optical Power Transfer (WOPT) using the Resonant Beam Charging (RBC) method is the restrictive alignment requirement. In this study, we examine the utilization of a diverging angular dispersion beam and active beam steering to enhance the likelihood of identifying and maintaining a resonant link. The system exhibits significant improvements compared to conventional systems that utilize pencil beams. This enhancement is observed during the initial search for the receiver position, and it contributes to maintaining resonance cavity between the two beam types. These findings highlight the potential of utilizing diverging angular dispersion beams for real-time charging applications in future research.
This study provides a novel two-dimensional beam steering mechanism that takes advantage of wireless optical power systems utilizing diverging angular dispersion laser beams and the resonant beam charging technique. The system exhibits significant improvements compared to conventional systems that utilize pencil beams. These enhancements include reducing scanning time, capable of mitigating inherent errors, and increasing the ability to charge resonant cavities continuously. Specifically, our system exhibits scanning times that are 1.2 times faster than traditional systems. This opens the pathway for practical deployments of beam steering for RBC-based WOPT, enabling real-time charging and communication.
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