130mm fiber optic preform

130mm optical fiber preform is manufactured using a combination of VAD core and OVD cladding production process. The main component is SiO2, and other components such as F and Ge are doped in specific areas according to product characteristics. The outer diameter of the finished preform is about 130mm, and it is used to draw single-mode optical fibers that meet the standards of ITU-T G.652B/D and ITU-T G.657.A1/A2/B3.

Product application

According to customer usage requirements, various models of G.652 and G.657 single-mode optical fibers are drawn.

Product standards

The key technical performance is superior to ITU-T and relevant national standards.

Product features

Stable refractive index profile, precise geometric dimensions, and extremely low loss characteristics.

Geometric performance of preform outer diameter (O.D.) 130-150 (± 5) [mm] Single rod outer diameter deviation (Tolerance of O.D.) ≤ 5 [mm] Effective length of preform ≥ 1600 [mm] Effective weight of preform ≥ 45 [Kg] Non circularity of preform ≤ 1% Concentricity error of core/cladding ≤ 0.5 [mm] Bow ≤ 1.0 [mm/m] Appearance defect performance: No defects in the core rod area. Bubbles allowed per meter of preform cladding area. The number L is the size of the bubble diameter L ≤ 0.5 mm -0.5 mm ≤ L ≤ 1.0 mm ≤ 8 1.0 mm ≤ L ≤ 2.0 mm ≤ 4 L>2.0 mm. The interface between the core and cladding is free of obvious pollutants, impurities, cracks, scratches, etc. (white impurities, spiral gas lines, etc. have no effect on wire drawing). The surface of the prefabricated rod is smooth and free of scars Main technical performance of undamaged drawn optical fiber products (conventional G.652. D) 1310nm attenuation ≤ 0.344 [dB/km] 1383nm attenuation ≤ 0.344 [dB/km] 1550nm attenuation ≤ 0.204 [dB/km] 1625nm attenuation ≤ 0.244 [dB/km] Dispersion in the wavelength range of 1285-1339nm ≤ 3.5 [ps/(nm · km)] Dispersion in the wavelength range of 1271-1360nm ≤ 5.3 [ps/(nm · km)] 1550nm dispersion ≤ 18.4 [ps/(nm · km)] 1625nm dispersion ≤ 22.4 [ps/(nm · km)] Zero dispersion wavelength 1312 ± 12.4 [nm] Zero dispersion slope ≤ 0.092 [ps/(nm2 · km)] fiber cutoff wavelength λ c 1150-1337 [nm] 1310nm mode field diameter (MFD) 9.2 ± 0.44 [μ m] 1550nm mode field diameter (MFD) 10.4 ± 0.8 [μ m] attenuation discontinuity 1310nm, 1550nm ≤ 0.05 [dB] core/cladding concentricity error ≤ 0.54 [μ m] cladding non circularity ≤ 1.04 [%]

The 130mm optical fiber preform is manufactured using a combination of VAD core and OVD cladding production process,

The main component is SiO2, which is doped with other elements such as F and Ge in specific areas according to the product characteristics

Divided, the outer diameter of the finished prefabricated rod is about 130mm, used for drawing to meet the requirements of ITU-T G.652B/D and

Standard single-mode optical fibers such as ITU-T G.657.A1/A2/B3.

Product application

⚫ According to customer usage requirements, various models of G.652 and G.657 single-mode optical fibers are drawn.

Product standards

The key technical performance is superior to ITU-T and relevant national standards

Product features

⚫ Stable refractive index profile, precise geometric dimensions, and extremely low loss characteristics.

Geometric performance

Prefabricated rod outer diameter (O.D.) 130-150 (± 5) [mm]

Deviation of outer diameter of a single rod (Tolerance of O.D.) ≤ 5 [mm]

Effective length of prefabricated rod (Effective L.) ≥ 1600 [mm]

Effective Weight of Prefabricated Bars ≥ 45 [Kg]

Non circularity of prefabricated rods ≤ 1%

Concentricity error of core/cladding ≤ 0.5 [mm]

Bow ≤ 1.0 [mm/m]

Appearance defect performance

No defects in the core rod area

The allowable number of bubbles per meter of prefabricated rod cladding area

L is the size of the bubble diameter

L≤0.5 mm -

0.5 mm≤L≤1.0 mm ≤8

1.0 mm≤L≤2.0 mm ≤4

L>2.0 mm 0

Core/cladding interface

No obvious pollutants, impurities, cracks, scratches, etc. (white impurities, spiral gas)

Thread has no effect on wire drawing

The surface of the prefabricated rod is smooth, without scars or damage

Main technical performance of drawn fiber optic products (conventional G.652. D)

1310nm attenuation ≤ 0.344 [dB/km]

1383nm attenuation ≤ 0.344 [dB/km]

1550nm attenuation ≤ 0.204 [dB/km]

1625nm attenuation ≤ 0.244 [dB/km]

Dispersion within the wavelength range of 1285-1339nm ≤ 3.5 [ps/(nm · km)]

Dispersion within the wavelength range of 1271-1360nm ≤ 5.3 [ps/(nm · km)]

1550nm dispersion ≤ 18.4 [ps/(nm · km)]

1625nm dispersion ≤ 22.4 [ps/(nm · km)]

Zero dispersion wavelength 1312 ± 12.4 [nm]

Zero dispersion slope ≤ 0.092 [ps/(nm2 · km)]

Fiber cutoff wavelength λ c 1150-1337 [nm]

1310nm mode field diameter (MFD) 9.2 ± 0.44 [μ m]

1550nm mode field diameter (MFD) 10.4 ± 0.8 [μ m]

Attenuation discontinuity 1310nm, 1550nm ≤ 0.05 [dB]

Core/cladding concentricity error ≤ 0.54 [μ m]

Non roundness of cladding ≤ 1.0