Fiber amplifier (OFA) is a device used to amplify signals in fiber optic communication lines. It directly amplifies optical signals without going through complex processes such as photoelectric conversion and electro-optical conversion. It is “transparent” and is particularly suitable for relay amplification in long-distance optical communications. The main functions of fiber amplifiers include:
Signal amplification: Fiber amplifiers can amplify optical signals in fiber optic communication systems, extend transmission distances, and improve signal quality.
Improve transmission efficiency: By amplifying signals, signal attenuation is reduced and transmission efficiency is improved.
Reducing costs: Compared with traditional electrical amplification methods, fiber amplifiers can reduce the number of equipment and maintenance costs.
Types of fiber amplifiers Fiber amplifiers can be divided into the following types according to their position and function in fiber optic lines:
Relay amplification: used for signal amplification in long-distance optical communications to extend transmission distances.
Preamplification: amplifies signals before the receiving end to improve receiving sensitivity.
Power amplification: used to increase the power of optical signals, suitable for scenarios requiring high power output.
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