H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/16 (2006.01) H04B 10/17 (2006.01) H04B 10/18 (2006.01) H04L 7/027 (2006.01)
Patent
CA 2141351
A a first clock extraction device included in the receiving section of the optical regenerator recovers a receiving clock. The receiving clock follows the fitter contained in a receiving optical signal caused by fiber wavelength dispersion. The receiving optical signal is detected in synchrony with the receiving clock. A transmission section includes a transmitter for generating a transmission optical signal changed in phase in such a manner as to suppress the stimulated Brillouin scattering and a second clock extraction device for regenerating the transmission clock not following the fitter. The data of the receiving optical signal is processed at a processing unit, and intensity-modulated on the basis of the data thus processed. The timing of this modulation is synchronized with the transmission clock. The receiving clock is synchronized with the fitter, and therefore no logic error occurs. Since the transmission clock does not follow the fitter, the fitter is prevented from accumulating.
Funada Takashi
Hagimoto Kazuo
Takeyari Ryoji
Wakai Yukihiko
Hitachi Ltd.
Kirby Eades Gale Baker
Nippon Telegraph And Telephone Corporation
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