| 摘要 |
An optical amplifier is disclosed. The amplifier includes an input and an optical splitter adapted to split the input into at least a first band signal portion and a second band signal portion. The first band signal portion includes a first reflector disposed optically downstream from the input, an amplifying gain medium disposed optically downstream from the first reflector, and a second reflector disposed optically downstream from the amplifying gain medium. A first amplifying power source is optically connected to the amplifying gain medium optically upstream from the amplifying gain medium and a second amplifying power source is optically connected to the amplifying gain medium optically downstream from the amplifying gain medium. The first reflector reflects a first light from the amplifying medium back into the amplifying medium and the second reflector reflects a second light from the amplifying medium back into the amplifying medium.
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