Specification
SDGI bending insensitive fiber has all the properties of enhanced single-mode fiber, is fully compatible with the G.652D fiber, and has excellent anti-bending performance, especially at the wavelength region of 1600nm. The feature of bend insensitivity of the fiber enables it to fully support the application at a wavelength of O-E-S-C-L-wave (1260-1625 nm) without extra carefulness during installation, thus reducing installation and rework costs.
The bending insensitive fiber is suitable for the cable of all structures, such as loose tube type, tight tube type, ribbon type, and center tube type. It can broadly support long-haul networks, metropolitan area networks, especially all the telecommunications, cable TV, and other applications in FTTH. The bending insensitive fiber can support smaller cable bending radius and smaller optical distribution boxes, fiber plug-in components.
The long-wavelength window transmission in the L band brings higher requirements and challenges to the macro bending loss of the optical fiber, while SDGI bending insensitive optical fiber can fully meet and exceed the requirements.
SDGI uses an advanced plasma vapor deposition method (APVD) to produce optical fiber products, which can ensure high quality and high purity of all-optical fibers. Meanwhile, APVD is the best process of realizing a sagging structure at the cladding layer of fiber which is requisite for an excellent bending insensitivity. In addition, all SDGI optical fiber products adopt a unique double UV curing acrylic coating process, which improves the reliability and durability of the fiber to ensure the best performance even in a harsh environment.
The performance of the SDGI single-mode fiber meets and exceeds the optical fiber specifications such as ITU-T G.652D/G.657A1/G.657A2, IEC60793- 2- 50B.1.3/B6a1/B6a2 and so on. To provide customers more convenience, SDGI has made more strict internal standards for all indexes of optical fiber products.
Product Features
◆ Excellent bending insensitivity with bending radius of 7.5- 15 mm, including a wavelength
of L- band.
◆ The lower polarization mode dispersion coefficient (PMD): link design value.
◆ Improved geometric characteristics.
◆ Adopt advanced plasma vapor deposition method (APVD) patented technology.
Performance Advantage
◆ Fully support the application at the wavelength of L- band, and no extra carefulness is needed when winding fibers.
◆ More compact distribution devices can be used to save space greatly in the FTTH system.
◆ The distance of polarization mode dispersion is extended, and the relay cost is reduced.
◆ Lower splicing loss and higher splicing efficiency.
◆ Higher purity, better geometry, and uniformity.
Parameters
| Optical Characteristics(Uncabled fiber) | ||||
| Characteristics | Wavelength | Parameter value | Unit | |
| Attenuation | 1310nm | 0.35 | dB/km | |
| 1383nm（After hydrogen aging） | 0.35 | dB/km | ||
| 1460nm | 0.25 | dB/km | ||
| 1550nm | 0.21 | dB/km | ||
| 1625nm | 0.23 | dB/km | ||
| Attenuation vs Wavelength | 1285-1330nm in Reference to 1310nm | ≤0.03 | dB/km | |
| 1525-1575nm in Reference to 1550nm | ≤0.02 | dB/km | ||
| The Point Discontinuities | 1310nm | ≤0.05 | dB | |
| 1550nm | ≤0.05 | dB | ||
| Cut-off Wavelength(λcc) | -- | ≤1260 | nm | |
| Mode Field Diameter | 1310 | 8.3-9.2 | μm | |
| 1550 | 9.3-10.3 | μm | ||
| Zero dispersion wavelength(λ0) | -- | 1300-1324 | nm | |
| Zero dispersion slope(S0) | -- | ≤0.092 | ps(nm2·km) | |
| Polarization Mode Dispersion(PMD) | Link value(M=20，Q=0.01％ ) | -- | ≤0.06 | ps/√km |
| The typical value | -- | 0.04 | ps/√km | |
| The maximum value of a single drum | -- | ≤0.1 | ps/√km | |
| Macro-bend Induced Attenuation | 1Turns Around, 7.5mm Radius | 1550 | ≤0.2 | dB |
| 1Turns Around, 10mm Radius | 1550 | ≤0.1 | dB | |
| 10Turns Around, 15mm Radius | 1550 | ≤0.03 | dB | |
| 1Turns Around, 7.5mm Radius | 1625 | ≤0.5 | dB | |
| 1Turns Around, 10mm Radius | 1625 | ≤0.2 | dB | |
| 10Turns Around, 15mm Radius | 1625 | ≤0.1 | dB | |
| Geometrical Characteristics | |||
| Characteristics | Parameter value | Unit | |
| Cladding diameter | 125.0±0.7 | μm | |
| Core/Cladding concentricity error | ≤0.5 | μm | |
| Cladding non- circularity | ≤0.7 | ％ | |
| Fiber furl (radius) | ≥4 | m | |
| Coating diameter | 245±7.0 | μm | |
| Coating/Cladding concentricity error | ≤12.0 | μm | |
| Coating non- circularity | ≤6.0 | ％ | |
| mechanical Specifications | |||
| Characteristics | Parameter value | Unit | |
| Protest | ＞0.75 | Gpa | |
| 109 | kpsi | ||
| 1 | % | ||
| Coating Stripping Performance | Average value | 1.0-5.0 | N |
| Peak value | 1.3-8.9 | N | |
| Dynamic Fatigue Parameter | ≥20 | -- | |
| Environmental Characteristics | |||
| Characteristics | Parameter value(1310/1550nm) | Unit | |
| Temperature cycle | - 60℃ ~+85℃ | ≤0.05 | dB/km |
| Water immersion | 23℃，30days | ≤0.05 | dB/km |
| Dry heat | 85℃，30 days | ≤0.05 | dB/km |
| Damp heat | 85℃；85％ RH,30days | ≤0.05 | dB/km |
Pictures
Enhanced Bending Insensitive Non-dispersion Shifted Single-mode Fiber G.657A2
