Shanghai Gengyun Industrial Co., Ltd
The No.T-OF001-G.657.A2 nominal zero dispersion wavelength of G.657.A2 fiber optic is 1300~1324nm and 1300~1420nm, and the nominal operating wavelength is 1260~1625nm. Which is suitable for full-band transmission within this range. G657A2 optical fiber has excellent attenuation coefficient and low water peak, and excellent transmission performance. Due to its excellent bending performance, G.657.A2 fiber optic is particularly suitable for wiring environments with limited space and high bending requirements.
Features of G.657.A2 Fiber Optic
1.The fiber complies with or exceeds the ITU-T Recommendation G.652.D and G.657.A1, the IEC International Standard 60793-2-50 type B.1.3 Optical Fiber Specification;
2.The G.657.A2 fiber optic is manufactured using the advanced VAD process. Because of the advantages of the process, AOF fiber shows extremely refined refractive index profile control, excellent geometrical performance, low attenuation, etc;
3.Designed for operation over the 1260nm to 1625nm wavelength spectrum, completely low attenuation in the 1383 nm region;
4.Excellent bending property adapting special occasions which require bending radius;
5.Being compatible with existing G.652D Fiber;
6.Accurate geometrical parameters that insure low splicing loss and high splicing efficiency;
7.Excellent PMD factor supporting high-speed and distance upgrades.
Technology Parameters
| Characteristics Conditions Units Specified Values |
| Optical Characteristics |
| Attenuation |
| 1310nm dB/km ≤0.35 |
| 1550nm dB/km ≤0.21 |
| 1625nm dB/km ≤0.24 |
| 1383nm dB/km ≤0.32 |
| Attenuation vs. Wavelength |
| 1310nm 1285-1330nm dB/km ≤0.04 |
| 1550nm 1525-1575nm dB/km ≤0.03 |
| 1550nm 1480-1580nm dB/km ≤0.05 |
| Dispersion coefficients |
| 1288-1339nm ps/(nm·km) ≥-3.5,≤3.5 |
| 1371-1360nm ps/(nm·km) ≥-5.3,≤5.3 |
| 1480-1580nm ps/(nm·km) ≤20 |
| 1550nm ps/(nm·km) ≤18 |
| 1625nm ps/(nm·km) ≤22 |
| Zero dispersion wavelength nm 1300-1322 |
| Zero dispersion slope ps/(nm2·km) ≤0.091 |
| Zero dispersion slope typical value ps/(nm2·km) 0.086 |
| PMD: |
| Maximum Individual Fiber ps/√¯km 0.2 |
| Link Design Value(M=20,Q=0.01%) ps/√¯km 0.1 |
| Typical Value ps/√¯km 0.04 |
| Cable cutoff wavelengthλcc nm ≤1260 |
| Fiber cutoff wavelengthλc nm 1150-1330 |
| Mode field diameter(MFD) 1310nm μm 8.7±0.4 |
| 1550nm μm 9.6±0.5 |
| Effective group index of refraction |
| 1310nm 1.4672 |
| 1550nm 1.4683 |
| Attenuation Discontinuity 1310nm dB/km ≤0.05 |
| 1550nm dB/km ≤0.05 |
| Attenuation Bidirectional Measurement |
| 1310nm dB/km ≤0.05 |
| 1550nm dB/km ≤0.05 |
| Attenuation Uniformity 1310nm dB/km ≤0.05 |
| 1550nm dB/km ≤0.05 |
| Welding Loss |
| Average Value 1310nm,1550nm dB ≤0.05 |
| Maximum Value 1310nm,1550nm dB ≤0.1 |
| Geometrical Characteristics |
| Cladding diameter μm 125±0.7 |
| Cladding non-circularity % ≤0.8 |
| Core-cladding concentricity error μm ≤0.5 |
| Coating diameter μm 245±5 |
| Cladding-coating concentricity μm ≤12 |
| Coating non-circularity % ≤3.0 |
| Curl m ≥4 |
| Environmental Characteristics (1310nm,1550nm,1625nm) |
| Temperature Dependence -60ºC ~+85ºC dB/km ≤0.05 |
| Damp heat dependence 85ºC,RH85%,30days dB/km ≤0.05 |
| Water Immersion 23ºC,30days dB/km ≤0.05 |
| Heat Aging 85ºC,30days dB/km ≤0.05 |
| Mechanical Specification |
| Proof test % ≥1.02 |
| N ≥9.1 |
| Gpa ≥7.04 |
| Coating strip force Peak force N 1.3-8.9 |
| Typical average force N 1.9 |
| Tensile Strength Weibull Probability 50% Mpa ≥4000 |
| Weibull Probability 15% Mpa ≥3050 |
| Dynamic stress corrosion susceptibility parameter Nd ≥20 |
| Macro-bend Loss |
| 10 turn around a mandrel of 15mm radius |
| 1550nm dB ≤0.03 |
| 1625nm dB ≤0.1 |
| 1 turn around a mandrel of 10mm radius |
| 1550nm dB ≤0.1 |
| 1625nm dB ≤0.2 |
| 1 turn around a mandrel of 7.5mm radius |
| 1550nm dB ≤0.4 |
| 1625nm dB ≤0.8 |