optical amplifier

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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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.
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References in periodicals archive ?
In this review, we showed the two SPPs optical amplification mechanisms including spontaneous radiation amplification and simulated radiation amplification.
The fundamentals of optical amplification were born with the discovery of the light amplification by stimulated emission of radiation laser in the 1960s, but practical solutions for telecommunications appeared only recently with the maturity of fiber technology and of optoelectronic components.
Here, we have suggested a new mechanism of incoherent population transfer, where a pumping action is involved for achieving high-gain optical amplification in the negative-index quantum-coherent atomic vapor.
3 July 2012 a[euro]" US fibre optic subsystems and components firm Finisar Corp (NASDAQ:FNSR) said on Tuesday it had agreed to buy optical amplification specialist RED-C Optical Networks Inc for a maximum of USD43.7m (EUR34.8m).
To obtain the maximum gain in transmission distance, which can be achieved using a SOA or a RA, at first it is necessary to find the maximum transmission distance for a system without optical amplification. To do so, the maximum length of the SMF fiber was found, for which BER values are still below the 10-12 mark.
Manufacturers have addressed this using numerous of different technologies, such as multi-beam configurations, microwave back-up, expensive optical amplification by means of Erbium Doped Fiber Amplifiers, Raman amplifiers and semiconductor optical amplifiers.
The full-band 1550 nm will modulate the system directly and will support up to eight wavelengths and up to 1 GHz of both digital and analogue content per wavelength, at a distance of up to 40 km with optical amplification.
Because filtering reduces the energy content of the wave, optical amplification must be used to remove this loss.
This strained-well design creates an optical amplification 10 times that of the GaAs layers.

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