Optical transmission apparatus
AssigneeFujitsu Limited
InventorYasushi Sugaya
Life of this patent
Estimating the term…
Abstract
An optical transmission apparatus includes a demultiplexing unit that demultiplexes a light input to the optical transmission apparatus into a plurality of lights; an optical attenuator that adjusts an output level of a light within a band that includes a signal light from among demultiplexed lights; a bypass unit that bypasses a light outside the band from among demultiplexed lights; a multiplexing unit that multiplexes adjusted light and the light from the bypass unit; and an optical amplifier that amplifies input light. The optical amplifier is provided at least one of a stage prior to the demultiplexing unit and a stage subsequent to the multiplexing unit.
Claims5
An optical transmission apparatus comprising:
- a demultiplexing unit configured to demultiplex a light input to the optical transmission apparatus into a plurality of lights;
- an optical attenuator configured to adjust an output level of a light within a band that includes a signal light from among demultiplexed lights;
- a bypass unit configured to bypass a light outside the band from among demultiplexed lights;
- a multiplexing unit configured to multiplex adjusted light and the light from the bypass unit;
- and
- an optical amplifier configured to amplify input light, wherein the optical amplifier is provided at least one of a stage prior to the demultiplexing unit and a stage subsequent to the multiplexing unit.
Dependencies are inferred from the claim text.