Q. 94.5( 4 Votes )
Name the optoelec
The optoelectronic device used for measuring optical signals is Photo-diode.
A photodiode is also a special type of a junction diode which is used to detect optical signals. It has a p – n junction which is reverse biased and is made from the photosensitive material.
When a reverse bias is applied to such a diode, it causes a change in the intensity (I) of light, which reciprocally changes the current in the photodiode also.
I-V characteristics are:
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