Simultaneous Wireless Power and Data Transmission for Laser Power Transfer System Based on Frequency-Shift Keying Modulation Method

Abstract

A frequency-shift keying (FSK) modulation based method for laser power transfer (LPT) system is proposed in this digest to achieve power and data integrated transmission. In this method, by pulsing the power laser beam, the power transfer is only determined by the amplitude and duty cycle of the pulse laser. Thus, the frequency of the pulse laser, which does not affect the power flow, can be employed to achieve data modulation. As a result, power and data transfer can be decoupled in LPT system. The simulation results are provided in this paper to validate the effectiveness of the proposed approach.