Question

What are the requirement of photodetector ? When 1011 photon per second each with an

energy of 1.28 ×10-19 J are incident on an ideal photodiode, What is the output photocurrent.​

Answer 1

Answer:

What is the output signal of a photodiode? Photodiode operates as a voltage source as well a current source in response to the incident light in the wavelength range of 200 nm to 1100 nm. The current measurement is preferred since the output current changes linearly with incident light power.

Answer 2

Photodetectors are devices used for the detection of light – in most cases of optical powers. More specifically, photodetectors are usually understood as photon detectors, which in some way utilize the photo-excitation of electric carriers; thermal detectors are then not included by the term, and are also not treated in this article.

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