G654:Ultra low loss optical fiber, mainly used for transoceanic optical cable. The common core is pure SiO2,while the ordinary ones need to be doped with germanium. ata rates at and above 800 Gb/s over distances further than a few hundred kilometres. Over longer distances, such as between two data centres, signal regeneration or addition ng-distance transmission,” said Xavier Renard, Telecom Marketing Di ector at ACOME. “It's also c ucial that we consider the. Government has officially handed over to Cameroon Telecommunications, CAMTEL, a 78-strand fibre optic cable deployed overhead in the Southern Interconnected Grid, SIG, along the Their solution combines two existing fibre grades to provide a cable solution that enables longer transmission distances. G. E fibre: empowering ultra high-capacity long-haul transmission. have announced a new proposal for long-haul optical network cables that will 'break through the glass ceiling' of data transmission limits to ensure the ever-growing demands of data centres can be supplied. In new whitepaper, the cable. Recommendation ITU-T G. 654 describes the geometrical, mechanical and transmission attributes of a single-mode optical fibre and cable which has the zero-dispersion wavelength around 1300 nm wavelength, and which is loss-minimized and cut-off wavelength shifted at around the 1550 nm wavelength.