Avalanche Photodiode - Definition, Basic Structure and Workings: The avalanche photodiode is similar to the P-N or PIN photodiode except that it is operated at high reverse-bias voltages so that…
Pin Photodiode - Definition, Working and Applications: The PIN photodiode is one of the most common photodetectors, since the depletion-region thickness (intrinsic layer) can be tailored to optimize the quantum…
Photodiode Operation and Characteristics: Photodiode Operation - When a pn-Junction is reverse biased, a small reverse saturation current flows due to thermally generated holes and electrons being swept across the…
What is a Photodiode?: A reverse biased Semiconductor diode passes only a very small leakage current (a fraction of 1μA in silicon diodes), if the junction is exposed to light.…
Optoelectronics Articles: What is Photoelectric Effect? When monochromatic light is incident on a clean surface of a material, then under certain conditions, electrons, also called photoelectrons, are emitted from the…
Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 4: 150. In phase modulation, phase deviation is proportional to (a) carrier amplitude. (b) carrier phase. (c) message signal. (d) message…
Communication Channels Interview Questions and Answers: 1. What is optical communication? Ans. A system of communication in which optical carrier waves are used for transmission of information from one place to…
Optoelectronics Devices Interview Questions and Answers: 1.What are photonic devices? Ans. Photonic devices are those in which the basic particle of light (the photone) plays an important role. Photodetectors, solar cells…