BendingInsensitiveSingleModeFibre.docVIP

PAGE  PAGE 3 Bending Insensitive Single Mode Fibre (BI-SMF) Description YOFC BI-SMFs are optimized for enhanced low macro-bending sensitivity compared to the regular SMF. The bending insensitive single-mode fibres combine two attractive features: low intrinsic attenuation and excellent low macro-bending sensitivity. It is comprehensively optimized for use in O-E-S-C-L band (1260-1625nm) if low water peak concept is chosen. YOFC BI-SMFs offers high resistance to additional losses due to low macro-bending induced loss in the long wavelength region. This not only supports L-band applications but also allows for easy installation without excessive care when storing the fibre, for example, in splicing cassettes. The fibre supports installation with small cable bending radii and compact organizers. Applications Short pitch cables for special application High performance optical network operating in O-(E)-S-C-L band High speed optical routes in FTTX Cables with extremely tight bending requirements Small-sized optical component Key Features and Advantages Low macro-bending sensitivity including L-band Low PMD of 0.08ps/√km link design value Low micro-bending induced loss Low splice loss and high splice yields Superior geometry, uniformity and purity Typical Products - 1 Fibre TypeBI6/125-18/250BI 5/125-20/250Part No.BI1011-ABI1012-AOptical PropertiesAttenuation (dB/km) @1310 nm @1490 nm @1550 nm @1625 nm≤0.39 ≤0.26 ≤0.23 ≤0.25≤0.52 ≤0.52 ≤0.33 ≤0.33Zero Dispersion Wavelength (nm)≤1420≤1450Cable Cut-off wavelength (nm)≤1260≤1260Mode Field Diameter (um)@1310 nm @1550 nm6.5±0.4 7.4±0.55.6±0.4 6.5±0.5Geometrical PropertiesCladding Diameter(um)124.8±1.0124.8±1.0Cladding Non-circularity (%)≤1.0≤1.0Coating Diameter (um)245±7245±7Core/Cladding Offset (um)≤0.6≤0.6Mechanical PropertiesProof Test Level (kpsi)100100Macro-bending Induced LossΦ15 mm-1turn (dB)@1550 nm≤0.05≤0.01Φ15 mm-1turn(dB)@1625 nm≤0.10≤0