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AssigneeFujitsu Limited
InventorsShota Mori, Futoshi Izumi
Estimating the term…
An optical transmitter is provided with: an optical signal generator for generating a main signal to be transmitted and its inversion signal as optical signals of different wavelengths; and a wavelength division multiplexer for wavelength division multiplexing the optical signals of different wavelengths generated by the optical signal generator and transmitting the multiplexed optical signal. By transmitting the main signal to be transmitted and its inversion signal as the wavelength division multiplexed optical signal (containing optical signals of different wavelengths corresponding to the main signal and the inversion signal), “inter-channel crosstalk” which occurs during multi-wavelength batch amplification by an optical amplifier (Raman amplifier, semiconductor optical amplifier, etc.) can be suppressed effectively, independently of the performance/characteristics of optical devices.
An optical transmitter comprising:
The optical transmitter according to claim 4, wherein said optical signal generating means is configured to output said main signal and said inversion signal in a synchronized state.
An optical transmitter comprising:
An optical repeater for repeating an optical signal transmitted by an optical transmitter that transmits a main signal to be transmitted and its inversion signal as a wavelength division multiplexed optical signal containing optical signals of different wavelengths corresponding to said main signal and said inversion signal, comprising a dispersion compensator for compensating for wavelength dispersion of said main signal and said inversion signal.
An optical receiver for receiving an optical signal transmitted by an optical transmitter that transmits a main signal to be transmitted and its inversion signal as a wavelength division multiplexed optical signal containing optical signals of different wavelengths corresponding to said main signal and said inversion signal, comprising:
An optical receiver for receiving an optical signal transmitted by an optical transmitter that transmits a main signal to be transmitted and its inversion signal as a wavelength division multiplexed optical signal containing optical signals of different wavelengths corresponding to said main signal and said inversion signal, comprising:
An optical transmission method, wherein a main signal to be transmitted and its inversion signal are transmitted as optical signals of different wavelengths by means of wavelength division multiplexing.
Dependencies are inferred from the claim text.