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Transmission performance of the long-haul RZ-DPSK system with regard to the dispersion map design is studied theoretically. Improved design of the block type dispersion map is discussed based on the numerical simulations.
An experimental investigation of cross-phase modulation and self-phase modulation (SPM) upon long-haul RZ-DPSK system with block-type dispersion map was conducted; the SPM was confirmed to cause performance degradation near the system zero dispersion wavelength.
Dispersion map is one key technology of the long-haul system. A periodical dispersion map is used for the conventional IM-DD based system, but it is not favorable to the RZ-DPSK based system. This paper describes the effect of the dispersion map design for the long-haul RZ-DPSK system.
Performance of a long -haul RZ-DPSK system is theoretically characterized. It is observed that number of dispersion blocks in the dispersion map combined with the SPM causes the performance degradation near the system zero dispersion wavelength.
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