“…where E is optical pulse energy at the wavelength λ, h is the Planck constant, c, the velocity of the light in vacuum, r , the reflection coefficient, d, the thickness of the active layer of the MSM-PD, α , light absorption coefficient, U , external applied voltage, t, finger spacing and (Aliberti et al 2002;Li and Donaldson 2003) and thus it seems it can be used as simple design guidance for elaboration of high-speed MSM-PD's working at high energy levels of optical illumination. One may see that the most effective way to minimize the space-charge effects and to increase the dynamic range of the MSM-PD is an increase of the bias voltage.…”