Quantum efficiency of a photodiode (ratio between the number of liberated electrons and the number of incident photons) is 0.75 at
830 nm. Given Plank's constant
h=6.624×10−34 J, the charge of an electron
e=1.6×10−19 C and the velocity of light in the photodiode
Cm=2×108 m/s. For an incident optical power of
100μW at
830 nm, the photocurrent in
μA is
- 75.18