rare-earth-doped fiber amplifier

rare-earth-doped fiber amplifier

[¦rār ‚ərth ‚dōpt ‚fī·bər ′am·plə‚fī·ər]

(communications)

An optical fiber amplifier whose fiber core is lightly doped with trivalent rare-earth ions, which absorb light at certain pump wavelengths and emit it at some signal wavelength through stimulated emission.

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