Bend Insensitive Single-Mode Optical Fiber (G. 657. A1)
Application:
All cable constructions, 1260~1626nm full band transmission, FTTH high speed optical routing, optical cable in small bend radius, small-size optical fiber cable and device, L-band.
Type:
Bend Insensitive Single-mode Optical Fiber (G.657.A1)
Standard:
The fiber complie with or exceed the technical specifications in ITU-T G.657.D /A1.
Feature:
Superior anti-bending property;
Fully compatible with G.652 single-mode fiber. Full band (1260~1626 nm) transmission;
Low PMD for high bit-rate and long distance transmission. Extremely low micro-bending attenuation, applicable for all optical cable types including ribbons;
High anti-fatigue parameter ensures service life under small bending radius.
Application:
All cable constructions, 1260~1626nm full band transmission, FTTH high speed optical routing, optical cable in small bend radius, small-size optical fiber cable and device, L-band.
Easy bend fiber characteristics (ITU-G.657A1)
| Category | Description | Specifications | |
| Optical Specifications | Attenuation | @1310nm | ≤0.35dB/km |
| @1383nm | ≤0.30dB/km | ||
| @1490nm | ≤0.24dB/km | ||
| @1550 | ≤0.20dB/km | ||
| @1625 | ≤0.23dB/km | ||
| Attenuation Non-uniformity | @1310nm, 1550nm | ≤0.05dB | |
| Point Discontinuity | @1310nm, 1550nm | ≤0.05dB | |
| Attenuation vs Wavelength | @1285nm – 1330nm | ≤0.03dB/km | |
| @1525nm – 1575nm | ≤0.02dB/km | ||
| Zero Dispersion Wavelength | 1304nm-1324nm | ||
| Zero Dispersion Slope | ≤0.092ps/ (nm2·km) | ||
| Dispersion | @1550nm | ≤18ps/ (nm·km) | |
| @1625nm | ≤ 22ps/ (nm·km) | ||
| PMD Link Design Value (m=20 Q=0.01%) |
≤0.06ps√km | ||
| Maximum Individual Fiber | ≤0.1ps√km | ||
| Cable Cut-off wavelength(λ cc) | ≤1260nm | ||
| Macro Bending Loss (1turns; Φ10mm) | @1550nm | ≤0.30dB | |
| @1625nm | ≤1.50dB | ||
| Mode Field Diameter | @1310nm | 8.6±0.4µm | |
| @1550nm | 9.8±0.5µm | ||
| Dimensional Specifi-cations | Fiber Curl Radius | ≥4.0m | |
| Cladding Diameter | 125±0.7µm | ||
| Core / Clad Concentricity | ≤0.5µm | ||
| Cladding Non-circularity | ≤0.7% | ||
| Coating Diameter | 242±5µm | ||
| Coating / Cladding Concentricity | ≤12µm | ||
| Mechanical Specifi-cations | Proof Test | ≥100kspi (0.7GPa) | |
| Environment Specification 1310 & 1550 & 1625nm |
Fiber Temperature Dependence | -60oC~ +85oC | ≤0.05dB/km |
| Temperature Humidity Cycling | -10oC~+85oC;up to 98%RH | ≤0.05dB/km | |
| Heat Aging Induced Attenuation | 85±2oC | ≤0.05dB/km | |
| Water Immersion Induced | 23±2oC | ≤0.05dB/km | |
| Damp Heat | 85oC at 85% RH | ≤0.05dB/km |
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