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| Customization: | Available |
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| Application: | Communication, Steel Cable |
| Type: | Single-mode Fiber |
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The G657A2 single-mode optical fiber is specially designed for applications requiring high bend resistance and flexibility, making it ideal for FPV (First-Person View) drone signal transmission. It maintains stable optical performance even in extremely tight spaces and sharp bends, ensuring uninterrupted, high-speed data flow. This fiber complies with ITU-T G.657.A2 standards and is widely used in lightweight, miniaturized aerial communication systems.
| Characteristics | Unit | Value | |
| Geometrical | Cladding Diameter | μm | 125.0±1.0 |
| Cladding Non-circularity | % | ≤1.0 | |
| Core-Cladding Concentricity Error | μm | ≤0.6 | |
| Core Non-circularity | % | ≤12 | |
| Coating Diameter | μm | 243±5 | |
| Coating-Cladding Concentricity Error | μm | ≤12 | |
| Curl Radius | m | ≥4 | |
| Attenuation | 1310nm | dB/km | ≤0.35 |
| 1383nm | dB/km | ≤0.33 | |
| 1550nm | dB/km | ≤0.21 | |
| 1625nm | dB/km | ≤0.24 | |
| Attenuation vs Wavelength Max Difference | 1285nm ~ 1330nm vs 1310nm | dB/km | ≤0.04 |
| 1525nm ~1575nm vs 1310nm | dB/km | ≤0.03 | |
| 1485nm ~1580nm vs 1550nm | dB/km | ≤0.04 | |
| Dispersion Coefficient | 1285nm~1340nm | ps/(nmkm) | ≥-3.5 ≤3.5 |
| 1271nm~1360nm | ps/(nmkm) | ≥-5.3 ≤5.3 | |
| 1480nm~1580nm | ps/(nmkm) | ≤20 | |
| 1550nm | ps/(nmkm) | 13.3-18 | |
| 1625nm | ps/(nmkm) | 17.2-23 | |
| Zero Dispersion Wavelength λ0 | nm | 1300-1324 | |
| Zero Dispersion Slope S0 | ps/(nm²km) | 0.073-0.092 | |
| Typical Value | ps/(nm²km) | ≤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 | |
| Cable Cut-off Wavelength λcc | nm | 1180-1330 | |
| MFD | 1310nm | μm | 9.1±0.4 |
| 1550nm | μm | 10.4±0.5 | |
| Effective Group Index of Refraction | 1310nm | 1.4672 | |
| 1550nm | 1.4683 | ||
| Point Discontinuity | 1310nm | dB | ≤0.05 |
| 1550nm | dB | ≤0.05 | |
| Temperature Cycling | -60ºC ~+85ºC | dB/km | ≤0.03 |
| Temperature Humidity Cycling | 85ºC, RH 85%, 30 Days | dB/km | ≤0.03 |
| Water Immersion | 23ºC, 30 Days | dB/km | ≤0.03 |
| Dry Heat Aging | 85ºC, 30 Days | dB/km | ≤0.03 |
| Proof Test | % | ≥1 | |
| N | ≥9.1 | ||
| Gpa | ≥0.73 | ||
| Coating Strip Force | Peak Force | N | 1.3-8.9 |
| Typical Value | N | 1.9 | |
| Dynamic Fatigue Nd | ≥20 | ||
| Macro-bend Induced Attenuation | 1 turn around a mandrel of Φ 32 mm ,1310nm | dB | ≤0.05 |
| 100 turns around a mandrel of Φ 60 mm 1550nm | dB | ≤0.05 | |
| 100 turns around a mandrel of Φ 60 mm , 1625nm | dB | ≤0.05 | |
| Length per reel | km | 24.4/48.8/50.4 | |
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