All-China Federation of Trade Unions On this occasion of the 30th anniversary of the Chinese Association for International Understanding (CAFIU), the All-China Federation of Trade Unions would like to send its warmest...All-China Federation of Trade Unions On this occasion of the 30th anniversary of the Chinese Association for International Understanding (CAFIU), the All-China Federation of Trade Unions would like to send its warmest congratulations. Since its founding, CAFIU展开更多
This paper numerically investigates the effects of dispersion on optical fibre chaotic communication, and proposes a dispersion compensation scheme to improve the performance of optical fibre chaotic communication sys...This paper numerically investigates the effects of dispersion on optical fibre chaotic communication, and proposes a dispersion compensation scheme to improve the performance of optical fibre chaotic communication system. The obtained results show that the transmitter-receiver synchronization progressively degrades and the signal-to-noise ratio of the recovered message deteriorates as the fibre length increases due to the dispersion accumulation. Two segments of 2.5-km dispersion-compensating fibres are symmetrically placed at both ends of a segment of 245-km nonzero dispersionshifted fibre with low dispersion in one compensation period. The numerical results show that the signal-to-noise ratio of the extracted 1 GHz sinusoidal message is improved from -2.92 dB to 15.38 dB by this dispersion compensation for the transmission distance of 500 km.展开更多
文摘All-China Federation of Trade Unions On this occasion of the 30th anniversary of the Chinese Association for International Understanding (CAFIU), the All-China Federation of Trade Unions would like to send its warmest congratulations. Since its founding, CAFIU
基金supported by the National Natural Science Foundation of China (Grant Nos 60777041 and 60577019)the International Cooperation Project of Shanxi Province,China (Grant No 2007081019)
文摘This paper numerically investigates the effects of dispersion on optical fibre chaotic communication, and proposes a dispersion compensation scheme to improve the performance of optical fibre chaotic communication system. The obtained results show that the transmitter-receiver synchronization progressively degrades and the signal-to-noise ratio of the recovered message deteriorates as the fibre length increases due to the dispersion accumulation. Two segments of 2.5-km dispersion-compensating fibres are symmetrically placed at both ends of a segment of 245-km nonzero dispersionshifted fibre with low dispersion in one compensation period. The numerical results show that the signal-to-noise ratio of the extracted 1 GHz sinusoidal message is improved from -2.92 dB to 15.38 dB by this dispersion compensation for the transmission distance of 500 km.
