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erbium-doped fiber amplifier

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erbium-doped fiber amplifier [¦ər·bē·əm ‚dōpt ‚fī·bər ′am·plə‚fī·ər]
(communication)
An optical-fiber amplifier whose fiber core is lightly doped with trivalent erbium ions which absorb light at pump wavelengths of 0.98 and 1.48 micrometers and emit it at a signal wavelength around 1.5 micrometers through stimulated emission. Abbreviated EDFA.
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Thyagarajan (Indian Institute of Technology) and Ghatak (Disah Academy) then explain the role of lasers, photodetectors, erbium-doped fiber amplifiers, Raman fiber amplifiers, fiber Bragg gratings, couplers, isolators, external modulators, and thin-film devices in fiber optic communication systems.
Fiber optic essentials by SciTech Book News
The transfer standard is an erbium-doped fiber amplifier that is coupled to a linear polarizer and a narrow-band optical filter centered in the 1550 nm wavelength range.
NEW MEASUREMENT SERVICE FOR RELATIVE INTENSITY NOISE OF LASERS by Journal of Research of the National Institute of Standards and Technology
BUSINESS WIRE)--March 26, 2003 Intelligent Erbium-doped Fiber Amplifier Combines Wide Gain Range and Fast Transient Control in a Compact Package Onetta, Inc.
Onetta Delivers Compact Variable Gain Amplifier for Metro/Regional ... by Business Wire
 
 
 
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