Avalanche photodiode simulation circuit and simulation model

• Main Authors: HU ANQI, ZHOU XINGYE, LIU QIAOLI, GUO XIA, XING WANWAN
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention provides an avalanche photodiode simulation circuit and a simulation model. The simulation circuit comprises an input unit, an avalanche trigger voltage-controlled switch, a voltage source providing avalanche photodiode breakdown voltage and a first resistor. The input unit comprises a photon incidence unit, a dark counting unit and a post-pulse unit, and the output end of the input unit is connected with the anode control end of the avalanche trigger voltage-controlled switch; the input end of the dark counting unit is connected with the anode and the cathode of the avalanche photodiode; the input end of the rear pulse unit is connected with the anode of the avalanche photodiode and the cathode of the avalanche photodiode; the voltage source is connected with the cathode of the avalanche photodiode and the input end of the first resistor; the input end of the avalanche trigger voltage-controlled switch is connected with the output end of the first resistor, the output end is connected with the