Optical fibers and amplifiers are used together, so each fiber amplifier needs to be equipped with an optical fiber connection. There must be a sleeve on the optical fiber with the model number written on it. Optical fiber is divided into coaxial type, separate type, and 2-wire type (one T, one R).
Optical Fiber Amplifier (OFA) refers to a new type of all-optical amplifier used in optical fiber communication lines to achieve signal amplification. According to its position and role in the optical fiber line, it is generally divided into three types: relay amplification, preamplification and power amplification.
Compared with traditional semiconductor laser amplifiers (SOA), OFA does not need to go through complex processes such as photoelectric conversion, electro-optical conversion and signal regeneration. It can directly amplify the signal with all-optical amplification and has good "transparency". "property", especially suitable for relay amplification of long-distance optical communications. It can be said that OFA has laid a technical foundation for the realization of all-optical communications.
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