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AssigneeNippon Telegraph and Telephone Corporation
InventorsShimpei SHIMIZU, Takayuki KOBAYASHI, Yutaka MIYAMOTO
Estimating the term…
An aspect of the present invention is a transmission system for transmitting an optical signal which includes a phase conjugate light generation part which generates phase conjugate light of the optical signal whose frequency is within a first band in a second band different from the first band and an optical phase-sensitive amplifying part which phase-sensitively amplifies the optical signal and the phase conjugate light and in which the first band is a frequency band in which the sensitivity of light reception of a receiver which receives the optical signal is a predetermined level or more among the frequency bands in which a transmitter which outputs the optical signal is able to output the optical signal with a predetermined intensity or more and the second band is a higher or lower frequency band than the first band.
A transmission system which transmits an optical signal, comprising:
A transmission method performed by a transmission system which includes a phase conjugate light generator which generates phase conjugate light of an optical signal whose frequency is within a first band in a second band different from the first band and an optical phase-sensitive amplifier which phase-sensitively amplifies the optical signal and the phase conjugate light and in which the first band is a frequency band in which the sensitivity of light reception of a receiver which receives the optical signal is a predetermined level or more among the frequency bands in which a transmitter which outputs the optical signal is able to output the optical signal with a predetermined intensity or more and the second band is a higher or lower frequency band than the first band, comprising:
Dependencies are inferred from the claim text.