OPTICAL RECEIVING APPARATUS, OPTICAL RECEIVING METHOD AND OPTICAL TRANSMISSION SYSTEM
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Jan 11, 2022
filing date -
Jan 11, 2022
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Abstract
An optical receiving apparatus includes: a first branching unit that branches an input optical signal into a first optical signal and a second optical signal; a reception amplification unit that amplifies power of the first optical signal; a compensation unit that compensates for wavelength distortion of the first optical signal whose power has been amplified; a first detection unit that detects power of the second optical signal; a first control unit that controls an amount of compensation for the wavelength distortion on the basis of the power of the second optical signal; a second branching unit that branches the first optical signal compensated for the wavelength distortion into a third optical signal and a fourth optical signal; a second detection unit that detects power of the third optical signal; and a second control unit that controls an amplification factor of the power of the first optical signal before the compensation for the wavelength distortion on the basis of the power of the third optical signal.
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