Home of RF and Wireless Vendors and Resources

One Stop For Your RF and Wireless Need

Photodiode Responsivity Definition, formula, calculator

This page describes Photodiode Responsivity definition, Photodiode Responsivity 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):

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

Photodiode Responsivity Formula

Following Photodiode Responsivity formula is used in this calculator on Photodiode Responsivity.

Photodiode Responsivity formula

Photodiode calculators and terminologies

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

Useful converters and calculators

Following is the list of useful converters and calculators.

dBm to Watt converter
Stripline Impedance calculator
Microstrip line impedance
Antenna G/T
Noise temp. to NF

RF and Wireless tutorials

Share this page

Translate this page