Shanghai Gengyun Industrial Co., Ltd
The bend insensitive type-A1 G657A1 fiber optic complies with or exceeds the specification of ITU-T G.657 recommendation of type-A1 optical fiber. It complies with the requirements suggested by ITU-T G.652D and the standard of IEC60793-2-50 B1.3 type optical fiber. It is a bend-insensitive low water peak optical fiber with better macro-bend resistance performance.
Feature
- Insensitive to bending;
- Small core diameter, stable transmission signal;
- G657A1 fiber optic has high refractive index;
- Good dispersion characteristics;
- Strong compatibility;
Application
G657A1 fiber optic mainly used for Access network, fiber to the home, high-density wiring applications;
Technology Parameters
| Item | Unit | Technology Standard | ||||||
| Transmission Performance | ||||||||
| Attenuation at 1310nm | dB/km | ≤0.35 | ||||||
| Attenuation at 1550nm | dB/km | ≤0.21 | ||||||
| Attenuation at 1625nm | dB/km | ≤0.24 | ||||||
| Attenuation at 1383±3nm | dB/km | ≤0.35 | ||||||
| Attenuation discontinuity | dB | ≤0.03 | ||||||
| Attenuation-wavelength characteristic | dB/km | ≤0.03 | ||||||
| Zero dispersion wavelength | nm | 1300~1324 | ||||||
| Zero dispersion slope | ps/(nm2.km) | ≤0.090 | ||||||
| Dispersion at 1288-1339nm | ps/(nm.km) | ≤3.5 | ||||||
| Dispersion at 1271-1360nm | ps/(nm.km) | ≤5.3 | ||||||
| Dispersion at 1550nm | ps/(nm.km) | ≤18 | ||||||
| PMD | ps/ km | ≤0.2 | ||||||
| Cut-off wavelength(λcc) | nm | ≤1260 | ||||||
| Macro-bend Loss | ||||||||
| R15mm/10turns/1550nm | dB | ≤0.25 | ||||||
| R10mm/1turn/1550nm | dB | ≤0.75 | ||||||
| R7.5mm/1turn/1550nm | dB | — | ||||||
| R15mm/10turns/1625nm | dB | ≤0.1 | ||||||
| R10mm/1turn/1625nm | dB | ≤1.5 | ||||||
| R7.5mm/1turn/1625nm | dB | — | ||||||
| Geometric Performance | ||||||||
| Mode field diameter at 1310nm | μm | (8.6~9.2)±0.4 | ||||||
| Cladding diameter | μm | 125±0.7 | ||||||
| Core/Cladding Concentricity Error | μm | ≤0.5 | ||||||
| Cladding Non-Circularity | % | ≤1 | ||||||
| Coating diameter(uncolored) | μm | 243±7 | ||||||
| Cladding/Coating Concentricity Error | μm | ≤12.5 | ||||||
| Mechanical Performance | ||||||||
| Proof test level | % | ≥1.0 | ||||||
| Fiber Strength | 10m, Weibull lowest probability level:2.76GPa(15%) | |||||||
| Dynamic corrosion parameter nd | ≥20 | |||||||
| Curl radius | m | ≥4 | ||||||
| Strip force | Average value | N | 1~5 | |||||
| Peak value | 1.3~8.9 | |||||||
| Environment Performance | ||||||||
| Temperature performance(-60~+85ºC) | Additional attenuation ≤0.05dB/km is allowed at 1310nm and 1550nm. |
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| Immersing performance(23±2ºC, 30days) | ||||||||
| Humidity and heat performance (85±2ºC,humidity degree over 85%,30days) |
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| Heat aging performance(85±2ºC, 30days) | ||||||||
