Dark Current in Fiber Optic Transmission Formulas

Dark current is the electric current that flows through a photosensitive device, such as a photodetector, even when there is no incident light or photons striking the device. And is denoted by I_d. Dark Current is usually measured using the Nanoampere for Electric Current. Note that the value of Dark Current is always positive.

Fiber Optic Transmission formulas that make use of Dark Current

fxTotal Photodiode CurrentGo

fxSNR of Good Avalanche Photodiode ADP Receiver in decibelsGo

fxTemperature Effect on Dark CurrentGo

fxDark Current NoiseGo

fxNoise Equivalent PowerGo

fxTotal Shot NoiseGo

FAQ

What is the Dark Current?

Dark current is the electric current that flows through a photosensitive device, such as a photodetector, even when there is no incident light or photons striking the device. Dark Current is usually measured using the Nanoampere for Electric Current. Note that the value of Dark Current is always positive.

Can the Dark Current be negative?

No, the Dark Current, measured in Electric Current cannot be negative.

What unit is used to measure Dark Current?

Dark Current is usually measured using the Nanoampere[nA] for Electric Current. Ampere[nA], Milliampere[nA], Microampere[nA] are the few other units in which Dark Current can be measured.

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