See Also: Fiber Optics, Fiber Optic Types
Has been used in the 1990s in long-haul telephone (see Telephone) networks. DSF fiber is optimized for operating at the higher Wavelength range of 1,550 (nm). A significant benefit in extending signal Repeater distances can be gained because of the low attenuation of silica fibers at
1,550 nm. This system cost benefit drove extensive use of DSF in long-distance
systems.