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optical amplifier
(redirected from Optical amplifiers)

   Also found in: Wikipedia 0.01 sec.
optical amplifier
A device that boosts light signals in an optical fiber network. Unlike regenerators, which have to convert light to electricity in order to amplify it and then convert it back again to light, the optical amplifier amplifies the light signal itself. Developed in the late 1980s, the erbium-doped fiber amplifier (EDFA) was the first successful optical amplifier. See EDFA.
optical amplifier [′äp·tə·kəl ′am·plə‚fī·ər]
(engineering)
An optoelectronic amplifier in which the electric input signal is converted to light, amplified as light, then converted back to an electric signal for the output.


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of Helsinki) has edited a collection of studies covering light modulators, optical waveguides and interconnectors, optical amplifiers, detectors, memory elements, and more.
Most spans are actually under 100 kilometers and thus do not require optical amplifiers in most cases unless the coupling loss are too high.
Fiber Raman amplifiers are becoming increasingly important in optical fiber communication systems since they provide both lower noise performance and a wider wavelength coverage than conventional optical amplifiers.
 
 
 
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