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What is Optical Sources in Fiber Communication about?
The document discusses light sources and detectors for optical fibers. It explains that a light emitting diode (LED) is a pn junction diode that emits incoherent light when carriers are injected across a forward-biased junction. It describes direct and indirect recombination processes in semiconductors and provides examples of direct bandgap materials like GaAs. Finally, it outlines two types of LEDs - surface emitting LEDs that emit light perpendicular to the fiber axis, and edge-emitting LEDs that emit fr
- Author
- Chandrasen Janjal
- Language
- EN