G.652 Optical Fiber Technical Parameters

1. Optical Fiber Type
Silica B1.1 single-mode optical fiber.
2. operating wavelength
Capacity Indicators meeting the 13l0nm and 1550nm transmission windows
3. Cut-off wavelength
The λ c value tested on 2 m coated optical fiber is 1100cm ~ The λ cc value tested on 22 m fiber cables is less than or equal to 1270nm.
4. Geometric Properties
Mold Field Diameter: nominal value (9.3 μm) ± 10%.
Package layer diameter: nominal value 125 μM + 2 μm.
Coating diameter: nominal value 245 + 10 μm.
Non-circular field: ≤ 6%.
Package layer non-circular: <2%.
Mode Field/package layer concentricity deviation: ≤ 1.0 μm.
Concentricity error of package Layer/coating: ≤ 12.5 μm.
5. Coating Layer
The optical fiber coating layer is closely connected with the optical fiber surface without fading or dyeing. The coating layer must be easily stripped for optical fiber connection.
6. Screening level and fatigue coefficient
The optical fiber must pass the full-length tension test, and its screening level must be equivalent to at least 0.42GPa (equivalent to strain of about 0.6%) for a second.
The fatigue coefficient of Optical Fiber ≥ 20.
7. Dispersion Characteristics
(1) The zero-dispersion wavelength range is 1300 ~ 1324nm
(2) The maximum zero color scatter slope is not greater than 0.093 ps/(n㎡. km ).
(3) 1288 ~ The dispersion coefficient within the range of 1339nm is not greater than 3.5 ps/n㎡. km
(4) The dispersion coefficient between 1 and 1360mm is not greater than 5.3 ps/n㎡. km.
(5) The dispersion coefficient of 1550nm wavelength is not greater than 18 ps/n㎡. km
(6) The dispersion coefficient in the range of 1480-1580nm is not greater than 20 ps/n㎡. km
8. Attenuation
1) The maximum attenuation coefficient at the 13l0nm wavelength is 0.36dB/km. In 1285 ~ Within the wavelength range of 1330nm, the attenuation coefficient of any optical fiber at any wavelength cannot exceed 0.03dB/km compared with that at 13l0nm. The maximum attenuation coefficient at the 1550nm wavelength is 0.21dB/km. In 1480 ~ The wavelength circumference of nm is that the attenuation coefficient of any optical fiber on any wavelength cannot exceed 0.05dB/km compared with the attenuation number on the 1550nm wavelength.
2) The Attenuation Curve of the optical fiber should be good linear and have no obvious steps. When an OTDR is used to detect any optical fiber, the attenuation of the 500m optical fiber at 13l0nm and 1550nm is not greater than (amean ± 0. 10dB)/2, and amean is the average attenuation coefficient of the optical fiber.
9. Macro bending loss
The bending additional loss measured at the wavelength of 5mm is less than or equal to 100 dB, with a radius of 1550 and rounds.
10. non-uniformity of Attenuation
Non-uniformity of optical fiber attenuation: ≤ 0.05dB