Stock Code:601869.SH / 06869.HK

FarBand® Cut-off Shifted Single-mode Optical Fibre

YOFC FarBand® fibre is designed specially for long-haul optical transmission systems. It makes performance optimization in both C band (1530-1565nm) and L band (1565-1625nm). Its enlarged effective area suppresses nonlinear effect in the process and increases nonlinear tolerance for transmission system. Meanwhile FarBand® fibre reduces attenuation in both C band and L band. The fibre fully meets the demands for transmitting signal with high speed, high capacity and extended networking distances over one single fibre.
Applications

Attributed to its large effective area and lower attenuation performance, FarBand® fibre is the optimum choice that supports various applications such as Ethernet, Internet Protocol (IP), Synchronous Optical Network (SONET) and Wavelength Division Multiplexing (WDM). FarBand® fibre enables high input power and minishes transmitted power distribution density because of its enlarged effective area, suppressing nonlinear effect, such as Brillouin scattering, self-phase modulation and cross phase modulation, thus it satisfys multi-channel DWDM system. Meanwhile FarBand® fibre provides low signal attenuation, which satisfys the optical fibre attenution requirement in long haul transmission, and provides more system redundancy.

Product standards

FarBand® fibre complies with or even exceeds the ITU-T G.654.B/E recommendation and IEC 60793-2-50 B1.2 Optical Fibre Specification. YOFC tightens many parameters of fibre products.

Characteristics

• Designed for 40G/100G/ 100G beyond large capacity, long haul Dense Wavelength Division Multiplexing (DWDM) system operation over C band (1530-1565nm) and L band (1565-1625nm)

• Large effective area reduces nonlinear effect in the transmission process, ensuring good system performance

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

• Lower bending induced loss at 1550nm and more sensitive 1625 nm window.

Specifications

Characteristics

Conditions

Specified values

Units

Optical Characteristics

Nominal Effective Area

1550nm

125

[μm2]

Mode Field Diameter

1550nm

12.0-13.0

[μm]

Attenuation

1550nm

≤0.19

[dB/km]

1625nm

≤0.21

[dB/km]

Attenuation vs. Wavelength

Max. α difference

1525-1575nm, in reference to 1550nm

≤0.02

[dB/km]

1550-1625nm, in reference to 1550nm

≤0.03

[dB/km]

Dispersion Coefficient

1550nm

≤23

[ps/(nm·km)]

1625nm

≤27

[ps/(nm·km)]

Dispersion Slope

1550nm

0.050-0.070

[ps/(nm2·km)]

PMD

Maximum Individual Fibre

--

≤0.1

[ps/√km]

Link Design Value(M=20,Q=0.01%)

--

≤0.04

[ps/√km]

Typical Value

--

0.03

[ps/√km]

Cable Cutoff Wavelength (λCC)

--

≤ 1520

[nm]

Effective Group Index of Refraction

1550nm

1.465

--

Point Discontinuities

1550nm

≤0.05

[dB]

Geometrical Characteristics

Cladding Diameter

--

125.0±1.0

[μm]

Cladding Non-Circularity

--

≤1.0

[%]

Coating Diameter

--

235-255

[μm]

Coating-Cladding Concentricity Error

--

≤12.0

[μm]

Coating Non-Circularity

--

≤6.0

[%]

Core-Cladding Concentricity Error

--

≤0.6

[μm]

Curl(radius)

--

≥4

[m]

Delivery Length1

--

Up to 25.2

[km/reel]

Environmental Characteristics 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 , 85% RH,30 days

≤0.05

[dB/km]

Dry Heat Aging

85℃,for 30 days

≤0.05

[dB/km]

 

Proof Test2

--

≥9.0

[N]

--

≥1.0

[%]

--

≥100

[kpsi]

Macro-bend Induced Loss 100 Turns Around a Mandrel of 30 mm Radius

1550nm

≤0.10

[dB]

1625nm

≤0.10

[dB]

Coating Strip Force

typical average force

1.5

[N]

peak force

1.3-8.9

[N]

Dynamic Fatigue Parameter(nd)

--

≥20

--

Remark: 1. Other delivery lengths are available.   2. Higher proof test level is available. 

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