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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.
Characteristics of VSB format, CS-RZ format and NRZ format were compared in a conventional DSF based long-haul DWDM system. VSB format and CS-RZ format were more robust against SPM-GVD compared to NRZ format
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