Fig. 1. Working principle diagram of PN-type photodiode

Fig. 2. Schematic diagram of experimental device

Fig. 3. Pulse signal response waveforms under different laser energy densities

Fig. 4. Relationship between peak voltage and increase of laser energy density

Fig. 5. Rising edge time of diode irradiated by different laser energy densities

Fig. 6. Relationship between FWHM of signal and increase of laser energy density

Fig. 7. Relationship between BW of signal and increase of laser energy density