| 摘要 |
An apparatus includes: an optical amplifier configured to perform optical amplification for gain by controlling so as to be a target gain; a correction power calculator configured to calculate, in response to amplified spontaneous emission light input to the optical amplifier, correction power corresponding to an amount of gain depression in a bandwidth in which spectral hole-burning occurs in the optical amplifier; and a gain controller configured to calculate, using the correction power calculated in the correction power calculator, a gain for controlling the optical amplification performed in the optical amplifier and perform, using the calculated gain, a control operation so that the gain of the optical amplification becomes the target gain. |
