In the last issue, I told you that photodiodes are widely used in daily life, so do you know where they are mainly used? Let's take a look at it together.

Laser rangefinder, laser radar

Receiving the reflected laser, converting the weak light signal into an electrical signal, and calculating the distance with the amplifier circuit.

Optical communication (irreplaceable)

In optical fiber communication, photodiode is the core device at the receiving end. Convert optical signals in optical fibers into electrical signals, and determine communication speed, sensitivity and bit error rate.

Laser stability monitoring

Real-time detection of laser output power to prevent power drift or out of control.

Biochemical analysis, fluorescence detection

Receiving fluorescence signal, judging concentration and reaction degree.

Industrial automation and machine vision, light curtain safety protection, industrial camera light intensity detection, encoder position feedback, color and reflectivity judgment, photodiode speed and high stability, very suitable for industrial field.

What I have introduced above is where the photodiode is mainly used. I hope you will have a clear understanding after reading it.