1. This specification covers the requirements for the supply of single-mode optical fiber cables.
2. The single mode optical fiber cable comply with the requirements of this specification and generally meet any latest relevant ITU-T Recommendation G.652D
2. Fiber characteristics
2.1 G.652
2.1.1 Geometric characteristics
| Item | Construction | |
| Mode field diameter | At 1310nm | 9.2±0.4μm |
| Cladding diameter | 125±1μm | |
| Core concentricity error | ≤0.6μm | |
| Cladding non-circularity | ≤1.0% | |
| Cut-off wavelength (λcc) (for cable) | ≤1260nm | |
| Cut-off wavelength (λc) (for fiber) | 1180nm~1330nm | |
| Primary coating diameter | (Not included color layer) | 245±10μm |
| (Included color layer) | 250±15μm | |
| Coating-cladding concentricity error | ≤12.5μm | |
| Fiber curl radius | ≥4m | |
2.1.2 Transmission characteristics
| Item | Performance | |
| Attenuation | At 1310nm | ≤0.36dB/km |
| At 1550nm | ≤0.22dB/km | |
| Macro bending loss | Φ=60mm, 100turns at 1550nm | ≤0.1dB |
| Chromatic dispersion | Within 1288~1339nm | ≤3.5ps/nm·km |
| At 1550nm | ≤18ps/nm·km | |
| Zero dispersion wavelength | 1300~1324nm | |
| Zero dispersion slope | ≤0.092ps/nm2·km | |
3 Optical Fiber Cable
3.1 Cross section
3.2 Dimension of the cable
| Amount. of fiber | Max. numb. of the fiber per tube | Number of Tube Positions | Number of Active Tubes | *Nom. thickness of sheath | Overall diameter (Approx.) | Weight (Approx.) |
| mm | mm | kg/km | ||||
| 12 | 12 | 6 | 1 | 0.5 | 6.1 | 29 |
| 24 | 12 | 6 | 2 | 0.5 | 6.1 | 29 |
| 48 | 12 | 6 | 4 | 0.5 | 6.1 | 29 |
| 72 | 12 | 6 | 6 | 0.5 | 6.1 | 29 |
| 144 | 12 | 12 | 12 | 0.5 | 9.1 | 73 |
| 192 | 24 | 8 | 8 | 0.5 | 9.0 | 72 |
| 288 | 24 | 12 | 12 | 0.5 | 11.4 | 110 |
*Note：The minimum thickness of the sheath is 0.3mm
3.3 Performance
| NO | ITEM | TEST METHOD | SPECIFICATION |
| 1 | Tensile performance IEC60794-1-21-E1 | - Short-term load: 0.5G - Time: 5 minute | Loss change £ 0.10 dB@1550 nm (after test) - Fiber strain £ 0.60 % - No sheath damage |
| 2 | Crush test IEC60794-1-21-E3 | - Load: 450 N /100mm - Time: 5 minute - Length: 100 mm | Loss change £ 0.10 dB@1550 nm (during test) - No sheath damage |
| 3 | Repeated bending IEC60794-1-21-E6 | - Bending radius.: 20 × D - Load: 25N - Flexing rate: 2sec/cycle - No. of cycle: 25 | - No fiber break - No sheath damage |
| 4 | Water penetration IEC60794-1-22-F5 | - Height of water: 1m - Sample length: 3 m - Time: 24 hr | - No drip through the cable core assembly |
| 5 | Twist IEC60794-1-21-E7 | - Length: 1 m - Load: 40N - Twist rate: ≤60sec/cycle - Twist angle: ±180° - No. of cycle: 5 | Loss change £ 0.10 dB@1550 nm (during test) - No sheath damage |
| 6 | Temperature Cycling IEC60794-1-22-F1 | - Temperature step: +20oC→-20oC→+70oC→+20oC - Number of cycle: 2 turns - Time per each step: 12 hrs | - Loss change £ 0.15dB/km@1550nm (during test) - Loss change £ 0.05dB/km@1550nm (after test) - No sheath damage |
Our Service:
1. Free samples are available
2. Fast Delivery, normally 5 Days after payment
3. Strictly quality control system
4. Quality Certificate ISO9001 is available
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