Corning's HI 1060 Flex fiber was specially designed to make fused fiber 980/1550nm WDM couplers. The HI 1060 Flex fiber has very low splicing loss with fibers for 1550nm (such as SMF-28e fiber, or standard G652.B, G652.D fiber), and also has low splicing loss with fibers for 980nm (HI 980, HI 1060 or PM 980 fibers). It can be spliced to Erbium doped fiber with low loss. The bending loss for 1550nm wavelength is also very small. These features are..