Description:
G.657A2 bears the entire characteristics of non-dispersion shifted single-mode optical fiber and superior bending performance, which is applicable to transmission over entire wavelength from 1260nm to 1625nm. It has low macro-bending loss and even with the bending radius of 7.5mm,and the macro-bending loss at 1625nm is only 0.8 dB.
Application:
Applies to all types of optical fiber cable,especially indoor tight-buffer cable and bow-type drop cable, which is the essential part for FTTH and FTTB.
Features:
(1) It completely overcomes the attenuation of water peak at 1383nm and could operate over the entire waveband from 1260nm to 1625nm.
(2) Excellent bending performance, applicable to occasion with special requirement of bending radius.
(3) Completely compatible with existing G.652D.
(4) Accurate geometrical parameter ensures low splicing loss and high splicing performance.
(5) Excellent PMD performance supports high-speed and long repeater spacing transmission system.
G.657.A2 Fiber Color Identification
No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Color | Blue | Orange | Green | Brown | Slate | White | Red | Black | Yellow | Violet | Pink | Aqua |
G.657.A2 Fiber Technical Parameters
Optical Performance | |||
Characteristics | Conditions | Unit | Standard Value |
Attenuation | 1310nm | dB/km | ≤0.344 |
1383nm | dB/km | ≤value at 1310nm | |
1550nm | dB/km | ≤0.204 | |
1625nm | dB/km | ≤0.234 | |
Attenuation vs Wavelength Max Difference | 1285nm ~ 1330nm vs 1310nm | dB/km | ≤0.04 |
1525nm ~1575nm vs 1550nm | dB/km | ≤0.03 | |
Dispersion Coefficient | 1285nm~1340nm | ps/(nm/km) | ≤3.5 |
1271nm~1360nm | ps/(nm/km) | ≤5.3 | |
1550nm | ps/(nm/km) | 13.3-18.0 | |
1625nm | ps/(nm/km) | 17.2-23.0 | |
Zero Dispersion Wavelength λ0 | -- | nm | 1300-1324 |
Zero Dispersion Slope S0 | -- | ps/(nm²/km) | 0.073-0.092 |
Typical Value | -- | ps/(nm²/km) | ≤0.086 |
PMD | Maximum Individual Fiber | ps/√km | ≤0.06 |
Link (M=20, Q=0.01%) | ps/√km | ≤0.06 | |
Typical Value | ps/√km | ≤0.04 | |
Fiber Cut-off Wavelength λcc | -- | nm | 1180-1330 |
Cable Cut-off Wavelength λcc | -- | nm | ≤1260 |
MFD | 1310nm | μm | 8.6±0.4 |
1550nm | μm | 9.7±0.6 | |
Point Discontinuity | 1310nm | dB | ≤0.05 |
1550nm | dB | ≤0.05 |
Geometrical Performance | ||
Characteristics | Unit | Standard Value |
Cladding Diameter | μm | 125.0±0.7 |
Cladding Non-circularity | % | ≤1.0 |
Core-Cladding Concentricity Error | μm | ≤0.5 |
Coating Diameter | μm | 243±5.0 |
Coating Non-circularity | % | ≤6.0 |
Coating-Cladding Concentricity Error | μm | ≤12 |
Curl Radius | m | ≥4 |
Mechanical Performance | |||
Characteristics | Conditions | Unit | Standard Value |
Proof Test | -- | % | ≥1.0 |
-- | N | ≥8.8 | |
-- | Gpa | ≥0.69 | |
Coating Strip Force | Peak Force | N | 1.0-8.9 |
Average Value | N | 1.0-5.0 | |
Tensile Strength (Weibull Probability Level) | Before -aged(sample 0.5m)(Level 15%) | Gpa | ≥3.14 |
Before -aged(sample 0.5m)(Level 50%) | ≥3.80 | ||
After -aged(sample 0.5m)(Level 15%) | ≥2.76 | ||
After -aged(sample 0.5m)(Level 50%) | ≥3.03 | ||
Dynamic Fatigue Nd | -- | ≥20 | |
Macro-bending Loss | (10 turns; Ф 30 mm) @1550 nm | dB | ≤0.03 |
(10 turns; Ф 30 mm) @1625 nm | dB | ≤0.1 | |
(1 turns; Ф 20 mm) @1550 nm | dB | ≤0.1 | |
(1 turns; Ф 20 mm) @1625 nm | dB | ≤0.2 | |
(1 turns; Ф 15 mm) @1550 nm | dB | ≤0.5 | |
(1 turns; Ф 15 mm) @1625 nm | dB | ≤1.0 |
Environmental Performance | |||
Characteristics | Conditions | Unit | Standard Value |
Temperature Cycling | -60℃ ~+85℃ | dB/km | ≤0.05 |
Damp Heat Aging | 85℃、 RH 85%、 30 Days | dB/km | ≤0.05 |
Water Immersion | 23℃、 30 Days | dB/km | ≤0.05 |
Dry Heat Aging | 85℃、 30 Days | dB/km | ≤0.05 |
Normally 24.4/48.8/50.4 km per reel, packed in carton boxes on pallets.
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