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Photodiode Responsivity | Definition, equation, calculator

This page describes Photodiode Responsivity definition. It mentions Photodiode Responsivity equation/formula and Photodiode Responsivity calculator.

Definition: The responsivity of silicon photodiode is a measure of sensitivity to light. It is defined as ratio of photocurrent (Ip) to incident light power P at given wavelength.

Responsivity, Rλ = Ip/P

In other words, it is measure of the effectiveness of conversion of light power into electric current. It varies with the wavelength of incident light, applied reverse bias and temperature.

Photodiode Responsivity Calculator

Output photocurrent , Amperes (input1) :

Incident optical power, Watts(input2) :



Responsivity in A/W (Output1):


*Note: Enter values in INPUT boxes and Press CALCULATE button to check OUTPUTS.

Example of Photodiode Responsivity calculator:
INPUTS : Ip = 50 mA, P = 500 mWatt
OUTPUTS: Responsivity = 0.1


Photodiode Responsivity Equation | Photodiode Responsivity Formula

Following equation or formula is used for Photodiode Responsivity calculator.


Photodiode Responsivity equation,Photodiode Responsivity formula

Photodiode calculators and terminologies

Photodiode vs Phototransistor
Difference between Photodiode types and PIN diode
Quantum Efficiency
Responsivity
Sensitivity

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