Erbium-Doped Fiber Amplifiers

Authored by: Liang Dong , Bryce Samson

Fiber Lasers

Print publication date:  September  2016
Online publication date:  September  2016

Print ISBN: 9781498725545
eBook ISBN: 9781315370521
Adobe ISBN:

10.1201/9781315370521-9

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Abstract

Erbium-doped fiber amplifiers (EDFAs) are critical for the emergence of wavelength-divisionmultiplexing (WDM) systems in optical communications, which are largely responsible for the rapid bandwidth increase of the internet in the past two decades. The modern high speed internet has transformed societies across the globe in very fundamental ways. The huge potential bandwidth available in optical fibers was realized very early on. The exploration of this available bandwidth using WDM started only after EDFAs enabled the simultaneous amplification of many WDM channels in the optical domain, therefore eliminating the costly high speed electronics in repeaters.

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