The optical sensitivity of SiPM is typically given by the photon detection efficiency (PDE), which is the ratio of detected photo-electrons and the number of incident photons. This value can be used to calculate the responsivity of the sensor by the following equation:
= Photon Detection Efficiency
= Wavelength
= Gain
= Electron Charge
= Afterpulsing Probability
= Crosstalk Probability
= Planck Constant
= Speed of light
Photon Detection Efficiency Calculator (SiPM)