G.652 fiber is designed specially for optical transmission systems operating over the entire wavelength window from 1260 nm to 1625 nm. By suppressing the water peak that occurs near 1383 nm in conventional single mode fibre due to hydroxyl (OH-) ions absorption, Fibre is able to open E-band (1360-1460nm) for operation, and consequently provides 100 nm more usable wavelengths.
• Designed for operation over the full optical spectrum from 1260-1625 nm, which provides 50% more usable wavelengths and hence the transmission capacity is increased
• Outstanding optical performance supporting high-speed transmission technologies such as DWDM and CWDM
• Being compatible with existing 1310 nm equipment
• Good protection and excellent strip force stability
• Accurate geometrical parameters that insure low splicing loss and high splicing efficiency
| Characteristics | Conditions | Specified Values | Units |
|---|---|---|---|
| Optical Characteristics | |||
| Attenuation | 1310nm | ≤0.34 | [dB/km] |
| 1383nm (after H₂-aging) | ≤0.34 | [dB/km] | |
| 1550nm | ≤0.20 | [dB/km] | |
| 1625nm | ≤0.24 | [dB/km] | |
| Attenuation vs. Wavelength Max. α difference |
1285-1330nm, in reference to 1310nm | ≤0.03 | [dB/km] |
| 1525-1575nm, in reference to 1550nm | ≤0.02 | [dB/km] | |
| Dispersion Coefficient | 1285-1340nm | -3.5 to 3.5 | [ps/(nm·km)] |
| 1550nm | ≤18 | [ps/(nm·km)] | |
| 1625nm | ≤22 | [ps/(nm·km)] | |
| Zero Dispersion Wavelength (λ₀) | -- | 1300-1324 | [nm] |
| Zero Dispersion Slope (S₀) | -- | ≤0.092 | [ps/(nm²·km)] |
| Typical Value | -- | 0.086 | [ps/(nm²·km)] |
| PMD | Maximum Individual Fibre | ≤0.1 | [ps/√km] |
| Link Design Value (M=20, Q=0.01%) | ≤0.06 | [ps/√km] | |
| Typical Value | 0.04 | [ps/√km] | |
| Cable Cutoff Wavelength (λcc) | -- | ≤1260 | [nm] |
| Mode Field Diameter (MFD) | 1310nm | 8.7-9.5 | [μm] |
| 1550nm | 9.8-10.8 | [μm] | |
| Effective Group Index of Refraction (Neff) | 1310nm | 1.466 | -- |
| 1550nm | 1.467 | -- | |
| Point Discontinuities | 1310nm | ≤0.05 | [dB] |
| 1550nm | ≤0.05 | [dB] | |
| Geometrical Characteristics | |||
| Cladding Diameter | -- | 125.0±0.7 | [μm] |
| Cladding Non-Circularity | -- | ≤1.0 | [%] |
| Coating Diameter | -- | 235-250 | [μm] |
| Coating-Cladding Concentricity Error | -- | ≤12.0 | [μm] |
| Coating Non-Circularity | -- | ≤6.0 | [%] |
| Core-Cladding Concentricity Error | -- | ≤0.6 | [μm] |
| Curl (radius) | -- | ≥4 | [m] |
| Delivery Length | -- | Up to 50.4 | [km/reel] |
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