Single-mode Optical Fiber G.652.B
This specification corresponds to fibers optimized for transmission in the wavelengths of 1310 nm to 1550 nm, according to subcategory G.652.B of ITU-T.
The core comprises doped silicon dioxide, surrounded by a silicon dioxide coating, the coating is composed of two layers of acrylate cured by UV.
Optical and geometric specifications
Optical parameters | Fiber not wired | Wired fiber |
Attenuation at 1310 nm | ≤ 0,35 dB/Km | ≤ 0,37 dB/Km |
Attenuation at 1550 nm | ≤ 0,21 dB/Km | ≤ 0,24 dB/Km |
Attenuation at 1285-1330 nm | ≤ 0,40 dB/Km |
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Attenuation at 1525 -1575 nm | ≤ 0,25 dB/Km |
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Max. discontinuity point in 1310 y 1550 nm | ≤ 0,05 dB |
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Cutoff wavelength | 1100 - 1300 nm | ≤ 1260 nm |
Zero dispersion point | 1300-1324 nm | |
Zero dispersion slope | ≤ 0,092 ps/nm2.Km | |
Chromatic Dispersion in 1285 –1330 nm | ≤ 3,5 ps/nm.Km | |
Chromatic Dispersion in 1270 - 1350 nm | ≤ 5,3 ps/nm.Km | |
Chromatic Dispersion in 1550 nm | ≤ 18,0 ps/nm.Km | |
PMD single fiber | ≤ 0,15 ps/√Km | |
PMDq (Q=0,01%, N=20) | ≤ 0,10 ps/√Km | |
Geometric parameters | |
Modal field diameter 1310 nm | 9,20 ± 0,40 µm |
Modal field diameter 1550 nm | 10,50 ± 0,80 µm |
Concentricity error core/cladding | ≤ 0,4 µm |
Cladding diameter | 125,0 ± 1,0 µm |
Concentricity error coating/cladding | ≤ 12 µm |
Non-Circularity coating | ≤ 10 % |
Coating diameter (colored) | 250 ± 15 µm |
Mechanical and environmental specifications
Mechanical specifications | |
Prooftest level | 1,2 % (120 kpsi, 0,86 GPa) |
Minimum bending radius | 30 mm |
Macrobend Induced attenuation: | |
1 turn over 32 mm at 1550 nm | ≤ 0,50 dB |
100 turns over 60 mm at 1550 nm | ≤ 0,05 dB |
Peeling force (F) (peak value) | 1,3 N ≤ F ≤ 8,9 |
Peeling force (F) (mean value) | 1 N ≤ F ≤ 5 |
Dynamic fatigue (nd) | 20 (typical value) |
Static fatigue (ns) | 20 (typical value) |
Environmental specifications | |
Induced attenuation at 1310, 1550 and 1625 nm: | |
-60ºC ~+85ºC temperature cycle | ≤ 0,05 dE/Km |
+85ºC/ until 98% RH. Temperature and humidity cycle | ≤ 0,05 dE/Km |
+85ºC +/- 2º C. Dry heat | ≤ 0,05 dB/Km |
+23ºC +/- 2º C. Water Immersion | ≤ 0,05 dB/Km |
Typical values
Refractive index of effective group | |
1310 nm | 1,466 |
1550 nm | 1,467 |