Specification
SDGI's enhanced single-mode fiber can provide the best transmission performance at the wavelength range from 1260nm to 1625nm, and acquires a minimum dispersion at the working window of 1310nm. The low loss at "water peak" (1383nm) ensures the availability of E- wave (1360 - 1460nm). Enhanced single-mode fiber supports such a broadband range that enables voice, data, and video services to be deployed flexibly within a single fiber. SDGI's enhanced single-mode
fiber is suitable for the cable of all structures, such as loose tube type, tight tube type, ribbon type, and center tube type.
SDGI's enhanced single-mode fiber has more sophisticated geometric performance, lower attenuation index, and polarization mode dispersion coefficient (PMD). The enhanced single-mode optical fiber can be used in long-distance, metropolitan, access and indoor network to better support the application of telecommunications, cable TV, and other aspects. The enhanced single-mode optical fiber is completely compatible with the standard single-mode optical fiber.
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. 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, IEC60793- 2- 50B.1.3 and so on. To provide customers more convenience, SDGI has made more strict internal standards for all indexes of optical fiber products.
Product Features
◆ Low attenuation coefficient at the water peak (1383nm).
◆ Low sensitivity to hydrogen.
◆ The lower polarization mode dispersion coefficient (PMD): link design value 0.06ps/ √ km.
◆ Low attenuation at Windows 1460 ＜ 0.25dB/km.
◆The advanced plasma vapor deposition (APVD) patented technology is adopted.
Performance Advantage
◆ It improves the fiber capacity and supports all wavelengths from 1260nm to 1625nm. Cost savings are achieved by the use of inexpensive lasers, multiplexing filters, and more wavelength channels.
◆ It is guaranteed that the optical fiber will maintain low attenuation at the 1383nm wavelength region even after the hydrogen aging, and improve the performance and service life.
◆ The restricted distance of polarization mode dispersion is extended, and the relay cost is reduced.
◆ Low-cost lasers and filters can be used in wider broadband.
◆ Improve pump efficiency of C- wave Raman amplifier.
◆ Higher purity, better geometry, and uniformity.
Parameters
| Optical Characteristics(Uncabled fiber) | ||||
| Characteristics | Wavelength | Parameter value | Unit | |
| Attenuation | 1310nm | 0.34 | dB/km | |
| 1383nm（After hydrogen aging） | 0.34 | dB/km | ||
| 1550nm | 0.2 | 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 | 8.7-9.5 | μm | |
| 1550 | 9.6-10.8 | μm | ||
| Chromatic Dispersion | 1285-1340 | ≤|3.4| | ps/√km | |
| 1550 | ≤18.0 | ps/√km | ||
| 1625 | ≤22.0 | ps/√km | ||
| Zero dispersion wavelength(λ0) | -- | 1300-1324 | nm | |
| Zero dispersion slope(S0) | -- | ≤0.090 | 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 single drum | -- | ≤0.1 | ps/√km | |
| Macro-bend Induced Attenuation | 100Turns Around, 50mm Radius | 1310 | ≤0.05 | dB |
| 100Turns Around, 50mm Radius | 1550 | ≤0.05 | dB | |
| 100Turns Around, 60mm Radius | 1625 | ≤0.05 | dB | |
| Geometrical Characteristics | |||
| Characteristics | Parameter value | Unit | |
| Cladding diameter | 125.0±1.0 | μm | |
| Core/Cladding concentricity error | ≤0.6 | μm | |
| Cladding non- circularity | ≤1.0 | ％ | |
| Fiber furl (radius) | ≥4 | m | |
| Coating diameter | 245±7.0 | μm | |
| Coating/Cladding concentricity error | ≤12.0 | μm | |
| Coating non- circularity | ≤6.0 | ％ | |
| MechanicaI Specifications | |||
| Characteristics | Parameter value | Unit | |
| Prooftest | ＞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 Non-dispersion Shifted Single-mode Fiber G.652D
