English
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.
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.
Details
Specification
Documents
Applications
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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