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US 2020/0028661 A1Published application
Optical transmitting device and optical receiving device
AssigneeFujitsu Limited
InventorsYuuki Ogata, Takashi Shiraishi
Life of this patent
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Abstract
An optical transmitting device includes a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element and a processor configured to control phase difference between the output data signals based on a result of comparison between phases of the reproduced clocks.
Claims16
An optical transmitting device comprising:
- a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element;
- and
- a processor configured to control phase difference between the output data signals based on a result of comparison between phases of the reproduced clocks.
An optical receiving device comprising:
- a plurality of receivers configured to be arranged so as to correspond to a plurality of channels, the receivers each reproducing a clock from a data signal obtained by a light receiving element by receiving an optical signal, and outputting the data signal identified and reproduced based on the reproduced clock;
- and
- a processor configured to control phase difference between the data signals output by the receivers based on a result of comparison between phases of the clocks reproduced by the receivers.
An optical transmitting device comprising:
- a plurality of transmitters configured to be arranged so as to correspond to a plurality of channels, the transmitters each reproducing a clock from an input data signal by using a voltage-controlled oscillator, and outputting the data signal identified and reproduced based on the reproduced clock to a light emitting element;
- and
- a processor configured to control phase difference between the data signals output by the transmitters based on a detection result of a gain of the voltage-controlled oscillator of each of the transmitters.
Dependencies are inferred from the claim text.