optical-fiber amplifier

optical-fiber amplifier

[‚äp·tə·kəl ‚fī·bər ′am·plə‚fī·ər] (communications) A device for amplifying signals transmitted over optical fibers, consisting of a low-loss single-mode fiber made of basic silica glass, along whose length gain is generated by coupling pump light at either or both fiber ends, or at periodic locations in between.