Bending Insensitive Single mode optical fiber G.657.A1
Cable Manufacturer:Yeesun Cable Type:Optical Fiber Time:2024-May-Mon 15:45:27 Browse:(23)Description
Yeesun bending insensitive single-mode fibre optic encompasses all the features of fibre and provides good resistance to macro-bending. It has low macro-bending sensitivity and low water-peak level. It is comprehensively optimized for use in O-E-S-C-L band (1260 -1625 nm). It offers good resistance to additional losses due to low macro-bending in the 1625 nm 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. For cable use inside buildings, the fibre supports installation with small cable bending radii and compact organizers.
Specifications
Optical Characteristics
Characteristics | Conditions | Specified values | Units |
Attenuation | 1310nm | ≤0.35 | [dB/km] |
Attenuation | 1383nm(after H2-aging) | ≤0.35 | [dB/km] |
Attenuation | 1460nm | ≤0.25 | [dB/km] |
Attenuation | 1550nm | ≤0.21 | [dB/km] |
Attenuation | 1625nm | ≤0.23 | [dB/km] |
Attenuation vs. Wavelength Max. α difference |
1285-1330nm, in reference to 1310nm | ≤0.03 | [dB/km] |
Attenuation vs. Wavelength Max. α difference |
1525-1575nm, in reference to 1550nm | ≤0.02 | [dB/km] |
Dispersion Coefficient | 1285-1340nm | -3.5 to 3.5 | [ps/(nm·km)] |
Dispersion Coefficient | 1550nm | ≤18 | [ps/(nm·km)] |
Dispersion Coefficient | 1625nm | ≤22 | [ps/(nm·km)] |
Zero Dispersion Wavelength(λ0) | — | 1300-1324 | [nm] |
Zero Dispersion Slope(S0) | — | ≤0.092 | [ps/(nm2·km)] |
Typical Value | ≤0.086 | ||
PMD / Maximum Individual Fibre | — | ≤0.1 | [ps/√km] |
PMD / Link Design Value(M=20,Q=0.01%) | — | ≤0.06 | [ps/√km] |
PMD / Typical Value | — | 0.04 | [ps/√km] |
Cable Cutoff Wavelength (λCC) | — | ≤1260 | [nm] |
Mode Field Diameter(MFD) | 1310nm | 8.4-9.2 | [μm] |
Mode Field Diameter(MFD) | 1550nm | 9.3-10.3 | [μm] |
Effective Group Index of Refraction(Neff ) | 1310nm | 1.466 | — |
Effective Group Index of Refraction(Neff ) | 1550nm | 1.467 | — |
Point Discontinuities | 1310nm | ≤0.05 | [dB] |
Point Discontinuities | 1550nm | ≤0.05 | [dB] |
Geometrical Characteristics
Characteristics | Specified values | Units |
Cladding Diameter | 125.0±0.7 | [μm] |
Cladding Non-Circularity | ≤0.7 | [%] |
Coating Diameter | 235-245 | [μm] |
Coating-Cladding Concentricity Error | ≤12.0 | [μm] |
Coating Non-Circularity | ≤6.0 | [%] |
Core-Cladding Concentricity Error | ≤0.5 | [μm] |
Curl(radius) | ≥4 | [m] |
Delivery Length | Up to 50.4 | [km/reel] |
Environmental Characteristics ( 1310nm, 1550nm & 1625nm )
Characteristics | Conditions | Specified values | Units |
Temperature Dependence Induced Attenuation | -60℃ to +85℃ | ≤0.05 | [dB/km] |
Temperature-Humidity Cycling Induced Attenuation | -10°C to +85°C, 98% RH | ≤0.05 | [dB/km] |
Watersoak Dependence Induced Attenuation | 23°C, for 30 days | ≤0.05 | [dB/km] |
Damp Heat Dependence Induced Attenuation | 85°C and 85% RH, for 30 days | ≤0.05 | [dB/km] |
Dry Heat Aging | 85℃, for 30 days | ≤0.05 | [dB/km] |
Mechanical Specification
Characteristics | Conditions | Specified values | Units |
Proof Test | — | ≥9.0 | [N] |
Proof Test | — | ≥1.0 | [%] |
Proof Test | — | ≥100 | [kpsi] |
Macro-bend Induced Loss | |||
10 Turns Around a Mandrel of 15 mm Radius | 1550nm | ≤0.25 | [dB] |
10 Turns Around a Mandrel of 15 mm Radius | 1625nm | ≤1.0 | [dB] |
1 Turn Around a Mandrel of 10 mm Radius | 1550nm | ≤0.75 | [dB] |
1 Turn Around a Mandrel of 10 mm Radius | 1625nm | ≤1.5 | [dB] |
Coating Strip Force | typical average force | 1.5 | [N] |
Coating Strip Force | peak force | 1.3-8.9 | [N] |
Dynamic Fatigue Parameter(nd) | — | ≥20 | — |
Applications
- Short pitch cables for special application
- High performance optical network operating in O-E-S-C-L band
- High speed optical routes for Fibre-to-the-Home networks
- High speed optical routes in buildings (FTTx)
- Cables with low bending requirements
Characteristics
- Low attenuation satisfying the operation demand in O-E-S-C-L band
- Good bending loss resistance at short radius bends
- Low bending loss for highly demanding cable designs including ribbons
- Low PMD satisfying high bit-rate and long distance transmission requirements
- Accurate geometrical parameters that insure low splicing loss and high splicing efficiency
Standard
- Yeesun bending insensitive single mode fibre meets or exceeds the ITU-T Recommendation G.652.D/G.657.A1 including the IEC 60793-2-50 type B1.3/B6.a1 Optical Fibre Specification
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