Banded optical amplifier

摘要

An optical amplifier includes a demultiplexer which separates a broadband optical signal into a plurality of banded optical signals; a plurality of ports, each of which outputs a selected one of the plurality of banded optical signals; and an amplifier section which is coupled to one of the plurality of output ports. A method of amplifying a optical signal includes separating a broadband optical signal into a plurality of banded optical signals; providing a plurality of ports, each of which outputs a selected one of said plurality of banded optical signals; and coupling an amplifier section to one of said plurality of ports.