| 摘要 |
A wavelength multiplex transmission apparatus including a divided wavelength band unit which controls signal light in each of a plurality of divided wavelength bands into which a transmission wavelength band on a transmission path is divided, a light source which is provided in the divided wavelength band unit and outputs dummy light, and a control unit which controls power of a divided band multiplexed light, which is multiplexed light of the signal light and the dummy light, to have predetermined level by controlling the power of dummy light.
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