Question
Download Solution PDFWhich one of the following can be used as a photo detector in Fiber Optic Communication?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- PIN photodiodes are used in fibre optic network cards and switches.
- They are designed to detect photons and are used in optical detection.
- Reverse current flows through the photodiode when it is sensing light.
- When photons excite carriers in a reverse-biased p-n junction, a very small current proportional to the light intensity starts to flow.
- The intensity depends on the wavelength of the light.
- Photodiodes convert incident light into electric energy, so they are used as optical detectors.
Last updated on Jun 26, 2025
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