G655 Non-zero dispersion single-mode fibre is optimized for the attenuation and dispersion characteristics at 1550nm working window, therefore it has the minimum attenuation and appropriate dispersion at 1550nm window, which fully meets the transmission requirements of C band (1530nm~1565nm) and L band (1565nm~1625nm) multi-channel DWDM system. G655 is applicable to all kinds of optical cable structures, including ribbon cable, loose tube stranded cable, backbone cable, central bundle cable and tight buffered cable, etc.