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Bending Insensitive Single mode optical fiber G.657.A1

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) Get factory price

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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