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.
◆ 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.
◆ 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.
|Optical Characteristics(Uncabled fiber)|
|1383nm（After hydrogen aging）||0.34||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|
|Mode Field Diameter||1310||8.7-9.5||μm|
|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|
|Core/Cladding concentricity error||≤0.6||μm|
|Cladding non- circularity||≤1.0||％|
|Fiber furl (radius)||≥4||m|
|Coating/Cladding concentricity error||≤12.0||μm|
|Coating non- circularity||≤6.0||％|
|Coating Stripping Performance||Average value||1.0-5.0||N|
|Dynamic Fatigue Parameter||≥20||--|
|Temperature cycle||- 60℃ ~+85℃||≤0.05||dB/km|
|Dry heat||85℃，30 days||≤0.05||dB/km|
|Damp heat||85℃；85％ RH,30days||≤0.05||dB/km|
Enhanced Non-dispersion Shifted Single-mode Fiber G.652D