Avalanche Photodiode Gain & Breakdown Calculator
Optoelectronics & LiDAR detection: Calculate APD internal multiplication gain ($M$), McIntyre excess noise factor ($F$), multiplied photocurrent, and optimum gain for optical receivers.
APD Device Technology
Operated slightly below V_br
Ionization & Photocurrent Inputs
Hole-to-electron impact ionization
Empirical fit ~2.0 - 3.5
Unamplified unity-gain current
Thermally generated carriers
Avalanche Amplification Output
Avalanche Gain M:
--
Current multiplication factor
Multiplied Signal Current:
--
Amplified output
McIntyre Excess Noise F(M):
--
Shot noise amplification penalty
Voltage Margin to V_br:
--
Remaining headroom (V)
| Total Output Current: | -- |
| Multiplied Dark Current: | -- |
| Gain Sensitivity (dM/dV): | -- |
| Optimal Receiver Gain M_opt (est): | -- |
Recommended Tools & Equipment
Tested hardware and components for high reliability
100% Free Tool
Zero Sign-Up