Nederlands
C CR Fiber Optics
G.657.A1 — Buigongevoelige single-mode vezel
G.657.A1 G.657.A1

Glasvezel

Buigongevoelige single-mode vezel

G.657.A1

ITU-T G.657.A1 · buigradius 10 mm · G.652.D-compatibel

Behoudt alle eigenschappen van standaard G.652.D-vezel — dus zelfde lassen, zelfde metingen — en verdraagt een buigradius van 10 mm. Gemaakt voor FTTH-stijgleidingen en gebouwinvoeren waar het tracé krap is.

Kwaliteit & conformiteit

G.657.A1

Normen & certificeringen

ITU-T G.657.A1IEC 60793-2-50

Kwaliteitskenmerken

  • Attenuation @ 1310 nm: ≤ 0.34 dB/km
  • Attenuation @ 1550 nm: ≤ 0.20 dB/km
  • Macrobend (R = 10 mm, 1 turn, 1550 nm): ≤ 0.75 dB
  • Macrobend (R = 15 mm, 10 turns, 1550 nm): ≤ 0.25 dB
  • Proof test: ≥ 100 kpsi (0.69 GPa)

Technische gegevens

G.657.A1

Optical
Attenuation @ 1310 nm≤ 0.34 dB/km
Attenuation @ 1550 nm≤ 0.20 dB/km
Macrobend (R = 10 mm, 1 turn, 1550 nm)≤ 0.75 dB
Macrobend (R = 15 mm, 10 turns, 1550 nm)≤ 0.25 dB
Cable cut-off wavelength λcc≤ 1260 nm
Geometry
Mode field diameter @ 1310 nm8.8 ± 0.4 µm
Cladding diameter125.0 ± 0.7 µm
Coating diameter242 ± 5 µm
Mechanical & environmental
Proof test≥ 100 kpsi (0.69 GPa)
Operating temperature-60 °C ~ +85 °C
StandardsITU-T G.657.A1, IEC 60793-2-50 type B6_a1

Bending-loss insensitive single-mode optical fiber is superior to standards of ITU-T Recommendation G.652D/G.657A and IEC International Standard 60973-2-50 B1.3.

The optical fiber perform is manufactured via the advanced VAD process. Due to the advantages of the fiber drawing process and the adopted VAD performs, G.657A1 optical fiber shows perfect refractive index profile,excellent geometrical performance, low bending loss etc.

It completely overcomes the attenuation of water peak at 1383 nm and could operate over the entire waveband from 1260 nm to 1625 nm.

Excellent bending performance, applicable to occasion with special requirement of bending radius.

Completely compatible with existing G.652D.

Accurate geometrical parameter ensures low splicing loss and high splicing

performance.

Excellent PMD performance supports high-speed and long repeater spacing transmission system.

Characteristics Conditions Specified Value Units
Geometrical Characteristics
Cladding Diameter 125±0.7 μm
Cladding Non-circularity ≤0.8 %
Coating Diameter 242±7 μm
Coating-Cladding Concentricity Error ≤12 μm
Coating Diameter ≤3.0 %
Core-Cladding Concentricity Error ≤0.54 μm
Curl ≥4 m
Optical Characteristics
Attenuation 1310nm ≤0.35 dB/km
1383nm ≤0.33 dB/km
1550nm ≤0.21 dB/km
1625nm ≤0.23 dB/km
Zero Dispersion Wavelength 1300-1322 nm
Zero Dispersion Slope ≤0.091 ps/(nm2●km)
Typical Value ≤0.086 ps/(nm2●km)
PMD Maximum Individual Fiber ≤0.2 ps/√km
PMD Link (M=20, Q=0.01%) ≤0.1 ps/√km
Typical Value ≤0.04 ps/√km
Cable Cut-off Wavelength λcc ≤1260 nm
MFD 1310nm 8.6±0.4 μm
1550nm 9.7±0.6 μm
Effective Group Index of Refraction 1310nm 1.4672
1550nm 1.4683
Point Discontinuity 1310nm ≤0.04 dB/km
1550nm ≤0.04 dB/km
Environmental Characteristics
Temperature Cycling -60℃+85℃ ≤0.03 dB/km
Temperature Humidity Cycling 85℃、 RH85%、 30 days ≤0.03 dB/km
Water Immersion 23℃、 30 days ≤0.03 dB/km
Dry Heat Aging 85℃、 30 days ≤0.03 dB/km
Mechanical Characteristics
Proof Test ≥1 %
≥9.1 N
≥0.73 Gpa
Coating Strip Force Peak Force 1.3-8.9 N
Typical Value 1.9 N
Dynamic Fatigue Nd ≥20
Macro-bend Induced Attenuation R15 mm, 1550 nm
10 turns with radius of 15mm at 1550nm
≤0.2 dB
R15 mm, 1625 nm
10 turns with radius of 15mm at 1550nm
≤0.8 dB
R10 mm, 1550 nm
1 turn with radius of 10mm at 1550nm
≤0.7 dB
R10 mm, 1625 nm
1 turn with radius of 10mm at 1625nm
≤1.2 dB
Length per reel 2.1-61 km

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