G.657A1 Single-mode fiber with low bending sensitivity
product description
Bend-insensitive single-mode fiber (G.657A1) combines the characteristics of non-dispersive mode-shift single-mode fiber with superior bending performance, suitable for full-band transmission across 1260-1625nm. Under long-wavelength conditions, its bending radius can be as small as 10nm.
operative norm
It meets and exceeds the requirements of ITU-T recommended G.652D/G.657A and IEC60973-2-50 B1.3 optical fiber technical specifications.
Product Features
· Eliminate the absorption of the 1383nm water peak and realize the transmission of the whole band from 1260nm to 1625nm;
· Excellent bending performance, used in the case of special requirements for bending radius;
· It is fully compatible with existing G.652D optical fibers;
· Excellent geometric dimensions ensure low welding loss and high welding performance, and excellent PMD coefficient to meet the long relay distance and high speed requirements of transmission systems.
Product Application
· Optical cable for various structures;
· Transmission in the full band of 1260 ~ 1626nm;
· FTTH high-speed optical router;
· Cable with small bending radius, small size cables and fiber optic devices, and requirements for L-band use.
Technical Specifications
Optical fiber performance | Main indicator name | technical parameter |
Geometry | cladding diameter | 125.0±0.7μm |
Coating Diameter | 242±7μm |
Outer coating/concentricity error (OCE) | ≤12μm |
Inner Coating/Cladding concentricity error (PCE) | ≤12μm |
Core/Cladding concentricity error (ECC) | ≤0.5μm |
non-circularity of cladding | ≤0.7% |
Coating roundness | ≤3% |
Bend radius | ≥4m |
optical performance | Magnetic field diameter (MFD) 1310nm | 8.8±0.4μm |
Magnetic field diameter (MFD) 1550nm | 9.8±0.5μm |
1310nm discount factor | ≤0.350dB/km |
1550nm discount factor | ≤0.210dB/km |
1383nm attenuation coefficient (after hydrogen aging) | ≤0.350dB/km |
1625nm discount factor | ≤0.230dB/km |
Maximum attenuation in the 1285-1330nm range versus 1310nm attenuation | ≤0.05dB/km |
Maximum attenuation in the 1525-1575nm range versus 1550nm attenuation | ≤0.05dB/km |
1310nm attenuation discontinuity | ≤0.05dB |
1550nm attenuation discontinuity | ≤0.05dB |
zero dispersion wavelength | 1312±12nm |
zero dispersion slope | ≤0.091ps/(nm²*km) |
1550nm dispersion coefficient | ≤18ps/(nm*km) |
Optical fiber cutoff wavelength | ≤1260nm |
Polarization mode dispersion (PMD) | ≤0.2ps/√km |
mechanical behavior | Filter tension | 1% ≥9N ≥100kpsi |
Coating peeling force | 1≤F average ≤5N 1.3≤F peak ≤8.9N |
Dynamic fatigue parameter Nd | ≥20 |
environmental performance | Temperature cycle additional attenuation (-60℃ to 85℃) | ≤0.05 dB/km |
Humidity and temperature cycle with additional attenuation (-10°C to 85°C, 98% relative humidity) | ≤0.05 dB/km |
Water immersion attenuation (23℃,30 days) | ≤0.05 dB/km |
Humid heat additive attenuation (85°C, 85% RH, 30 days) | ≤0.05 dB/km |
Dry heat aging with additional attenuation (85℃,30 days) | ≤0.05 dB/km |
Flexibility | 10 rings φ30mm, 1550nm | ≤0.25dB |
10 rings φ32mm, 1625nm | ≤1dB |
1 circle φ20mm, 1550nm | ≤0.75dB |
1 circle φ20mm, 1625nm | ≤1.5dB |
Fiber length |
| 2.1~61km |
Record Number：鲁ICP备2022038891号-2