Fig. 1. Equivalent circuit model of solar cell

Fig. 2. Equivalent circuit model of solar cell for energy transfer and communication

Fig. 3. Principle diagram of system experiment

Fig. 4. Response characteristic curves of solar cell. (a) I-V curve; (b) P-V curve

Fig. 5. Relationship between the output characteristics of GaAs solar cell and laser power density. (a) Short circuit current; (b) Open circuit voltage; (c) Photoelectric conversion efficiency

Fig. 6. Frequency response of the system when the receiver is PD detector and GaAs solar cell

Fig. 7. System frequency response change curves when the receiver is GaAs solar cell. (a) Change with ; (b) Change with 接收端为GaAs太阳能电池时系统频率响应变化曲线。(a)随 变化; (b)随 变化

Fig. 8. Output waveform before and after connecting circuit. (a) Before 2 kbps; (b) Before 10 kbps; (c) After 2 kbps; (d) After 240 kbps

Fig. 9. Principle diagram of amplification circuit

Fig. 10. Waveform received when the laser wireless energy and signal are transmitted synchronously. (a) Before circuit access; (b) After circuit access

Fig. 11. Signal output waveform under different laser power densities