Optoelectronic Devices

Optoelectronic is the technology that combines optics and electronics and this field includes many devices like LED, photodiode opto couplers and lasers that works on the action of PN junction.

This video will help you to understand the concept of light emitting diode, photo diode, applications of photo diode.


A diode is a two-terminal electronic component that conducts current primarily in one direction; it has low resistance in one direction, and high resistance in the other.

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