YOFC Bare Fiber G.657A1 Low Loss Bending Insensitive Single-mode Fibre
    Publish time 2020-12-03 10:14    


YOFC Bare Fiber G.657A1 Low Loss Bending Insensitive Single-mode Fibre

Descriptions: 

   YOFC EasyBand® Low Loss Bending Insensitive Single-mode Fibre is suitable for optical transmission systems which operates over the entire wavelength window from 1260 nm to 1625 nm. It is an advanced product of YOFC bending insensitive fibre, which possesses all advantages of Low Loss Fibre, and also improves anti-bending properties, combines low loss and bending insensitive properties. EasyBand® Low Loss Bending Insensitive Single-mode Fibre is fully compatible with standard normal single-mode Fibre, and thoroughly meets multiple demands of multi-channel, high bit-rate, long distance transmission and anti-bending properties.


 Features: 

  • Possesses advanced anti-bending and low loss properties

  • Achieved the operation over full optical spectrum from 1260nm–1625nm, and increased the system transmission capacity

  • Lower attenuation, which meets the demand of extended long distance transmission

  • Good bending loss resistance at short radius bends

  • Accurate geometrical parameters that insure low splicing loss and high splicing efficiency


Specifications:

Characteristics

Conditions

Specified values

Units

Optical Characteristics

 

 

 

Attenuation

1310nm

≤0.32

[dB/km]

1383nm(after H2-aging)

≤0.31

[dB/km]

1460nm

≤0.31

[dB/km]

1550nm

≤0.18

[dB/km]

1625nm

≤0.20

[dB/km]

Attenuation vs. Wavelength

Max. α difference

1285nm-1330nm, in reference to 1310nm

≤0.03

[dB/km]

1525nm-1575nm, in reference to 1550nm

≤0.02

[dB/km]

 

Dispersion Coefficient

1285nm-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 ValueM=20Q=0.01%)

--

≤0.06

[ps/√km]

Typical Value

--

0.04

[ps/√km]

Cable Cutoff Wavelength (λCC)

--

≤1260

[nm]

Mode Field DiameterMFD

1310nm

8.7-9.5

[μm]

1550nm

9.8-10.8

[μm]

Effective Group Index of RefractionNeff 

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

--

≤0.7

[%]

Coating Diameter

--

235-245

[μm]

Coating-Cladding Concentricity Error

--

≤12.0

[μm]

Coating Non-Circularity

--

≤6.0

[%]

Core-Cladding Concentricity Error

--

≤0.5

[μm]

Curl(radius)

--

≥4

[m]

Delivery Length

--

Up to 50.4

[km/reel]

Environmental Characteristics

1310nm, 1550nm & 1625nm

Temperature Dependence Induced Attenuation

-60℃ to +85℃

≤0.05

[dB/km]

Temperature-Humidity Cycling Induced Attenuation

-10°C to +85°C, 98% RH

≤0.05

[dB/km]

Watersoak Dependence Induced Attenuation

23°C, for 30 days

≤0.05

[dB/km]

Damp Heat Dependence Induced Attenuation

85°C and 85% RH, for 30 days

≤0.05

[dB/km]

Dry Heat Aging

85℃, for 30 days

≤0.05

[dB/km]

Mechanical Specification

 

Proof Test

--

≥9.0

[N]

--

≥1.0

[%]

--

≥100

[kpsi]

Macro-bend Induced Loss

10 Turns Around a Mandrel of 15 mm Radius

1550nm

≤0.05

[dB]

10 Turns Around a Mandrel of 15 mm Radius

1625nm

≤0.3

[dB]

1 Turn Around a Mandrel of 10 mm Radius

1550nm

≤0.5

[dB]

1 Turn Around a Mandrel of 10 mm Radius

1625nm

≤1.5

[dB]

Coating Strip Force

typical average force

1.5

[N]

peak force

1.3-8.9

[N]

Dynamic Fatigue Parameter (nd)

--

≥20

--


 Standard : 

        YOFC EasyBand® Low Loss Bending Insensitive Single-mode Fibre meets or exceeds the ITU-T Recommendation G.652.D/G.657.A1 including the IEC 60793-2-50 type B1.3/B6.a1 Optical Fibre Specification.


Delivery Length:  2km. 5km. 10.2km,20.5km. 50.4km/spool