单模光纤参数描述-英文
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单模光纤参数描述-英文
The properties of single mode optical fiber (ITU-T Rec. G.652.D)
| Item | Specification |
| Fiber type | Single mode |
| Fiber material | Doped silica |
| Attenuation coefficient
@ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.35 dB/km £ 0.32 dB/km £ 0.21 dB/km £ 0.24 dB/km |
| Point discontinuity | £ 0.05 dB |
| Cable cut-off wavelength | £ 1260 nm |
| Zero-dispersion wavelength | 1300 ~ 1324 nm |
| Zero-dispersion slope | £ 0.092 ps/(nm2.km) |
| PMDQ (Quadrature average*) | £0.2 ps/km1/2 |
| Mode field diameter @ 1310 nm | 9.2±0.4 um |
| Core / Clad concentricity error | £ 0.5 um |
| Cladding diameter | 125.0 ± 0.7 um |
| Cladding non-circularity | £1.0% |
| Primary coating diameter | 245 ± 10 um |
| Proof test level | 100 kpsi (=0.69 Gpa), 1% |
| Temperature dependence
0oC~ +70oC @ 1310 & 1550nm |
£ 0.1 dB/km |
The properties of single mode optical fiber (ITU-T Rec. G.655)
| Parameter | Specification | |
| MFD (1550nm) | (8.0~11.0) ±0.6um | |
| Cladding diameter | 125±1.0um | |
| Fiber diameter | 235~255um, with UV coating, and colored to : 250±15um | |
| Core/cladding concentricity error | ≤ 0.6um | |
| Coating/cladding concentricity error | ≤ 12.0um | |
| Cladding non circularity | ≤ 1.0% | |
| Cut-off wavelength | ≤ 1450nm | |
| Macro bend loss | Radius:30 mm;
Number of turns:100; Maximum at 1550 nm ≤0.5 dB |
|
| Proof stress | ≤0.69Gpa | |
| Chromatic dispersion coefficient | Dmin(λ ): 1460-1550 nm | 7.00 ((λ -1460) – 4.20
90 |
| Dmin(λ ): 1550-1625 nm | 2.97 ((λ -1550 ) + 2.80
75 |
|
| Dmax(λ ): 1460-1550 nm | 2.91 ((λ -1460) + 3.29
90 |
|
| Dmax(λ ): 1550-1625 nm | 5.06 ((λ -1550 ) + 6.20
75 |
|
| Attenuation coefficient | 1550nm: 0.25dB/km max after cabling
1625nm: 0.4dB/km max after cabling |
|
| Bending-loss performance of optical fiber @1310nm&1550nm | ≤0.05dB (100 turns around a mandrel of 50mm diameter) | |
| PMD coefficient | M:20 cables
Q:0.01% Maximum PMDQ≤ 0. 2 ps/√km |
|
| Refractive Index | 1310 nm:1.4677
1550 nm:1.4682 |
|
| Zero-dispersion slope | ≤0.092ps/nm2·km | |
The Properties Of Single Mode Optical Fiber (ITU-T Rec. G.657A1)
| Characteristic | Characteristic | Characteristic | Characteristic |
| Optical properties | |||
| Attenuation | 1310nm
1550nm 1625nm |
≤0.35
≤0.21 ≤0.23 |
dB/km
dB/km dB/km |
| Attenuation Value | 1310～16250nm | ≤0.035 | dB/km |
| Difference attenuation between | 1285～1310nm
1310nm 1525～1575nm 1550nm 1480～1580nm 1550nm |
≤0.03
≤0.02
≤0.04 |
dB/km
dB/km
dB/km |
| Macro bending sensibility | @1550nm
@1625nm @1550nm @1625nm |
≤0.25
≤1.0 ≤0.75 ≤1.5 |
Radius 15mm, 10 circle
Radius 15mm, 10 circle Radius 10mm, 1 circle Radius 10mm, 1circle |
| Zero dispersion wavelength | 1300～1324 | nm | |
| A zero-dispersion slope | ≤0.092 | ps/(nm2.km) | |
| dispersion conefficient | @1285-1340nm
@1550nm @1625nm |
-3.4-3.4
≤18.0 ≤22.0 |
ps/(nm2.km) |
| Cable cut-off wavelength（λcc） | ≤1260 | nm | |
| Mode field diameter （MFD） | 1310nm
1550nm |
8.4-9.2
9.3-10.3 |
μm
μm |
| Attenuation discontinuities | 1310nm
1550nm |
≤0.05
≤0.05 |
dB
dB |
| Geometric characteristics | |||
| Core diameter | 0.7 | μm | |
| Cladding Diameter | 125±0.7 | ||
| Cladding roundness | ≤0.7 | % | |
| Coating diameter | 245±7 | μm | |
| Coating / packagae concentricity error | ≤12.0 | μm | |
| Core / package concentricity error | ≤0.5 | μm | |
| The warpage (radius) | ≥4 | m | |
| Environmental characteristics（1310nm、1550nm、1625nm） | |||
| Temperature additional attenuation | -60℃ ～+85℃ | ≤0.05 | dB/km |
| Temperature-humidity cycle additional attenuation | -10℃ ～+85℃，85% Relative humidity, 30 days | ≤0.05 | dB/km |
| Flooding additional attenuation | 23℃，30 days | ≤0.05 | dB/km |
| Hot and humid additional attenuation | 85℃和85% Relative humidity，30 days | ≤0.05 | dB/km |
| Dry heat aging | 85℃ | ≤0.05 | dB/km |
| Mechanical properties | |||
| Screening tension | 100kpsi,
1% strain |
N | |
| Tensile strength(mid-value) |
|
>550 | kpsi |
| Coating peeling force | Typical average | 1.5 | N |
| Dynamic fatigue parameters | ≥20 | ||
The properties of optical fiber (ITU-T Rec. G.657A2)
| Characteristic | Characteristic | Characteristic | Characteristic |
| Optical properties | |||
| Attenuation | 1310nm
1383nm(After hydrogen aging) 1550nm 1625nm |
≤0.35
≤0.32 ≤0.20 ≤0.21 |
dB/km
dB/km dB/km dB/km |
| Relative wavelength attenuation
@1310nm @1550nm |
1285～1330nm
1525～1575nm |
≤0.05
≤0.05 |
dB/km
dB/km |
| Dispersion in the wavelength
range of |
1285～1340nm
1550nm |
≤3.5
≤18 |
ps/(nm.km)
ps/(nm.km) |
| Zero dispersion wavelength | 1300～1324 | nm | |
| A zero-dispersion slope | ≤0.092 | ps/(nm2.km) | |
| Polarization Mode Dispersion
Coefficient PMD Single fiber maximum Fiber link value (M=20, Q=0.01%) Typical value |
≤0.2
≤0.1 0.04 |
ps/
ps/ ps/ |
|
| Cable cut-off wavelength（λcc） | ≤1250 | nm | |
| Mode field diameter （MFD） | 1310nm
1550nm |
8.8±0.4
9.8±0.5 |
μm
μm |
| Attenuation discontinuities | 1310nm
1550nm |
≤0.05
≤0.05 |
dB
dB |
| Geometric characteristics | |||
| Core diameter | 125±0.7 | μm | |
| Cladding roundness | ≤0.7 | % | |
| Coating diameter | 245±5 | μm | |
| Coating / package
concentricity error |
≤12.0 | μm | |
| Core / package concentricity
error |
≤0.5 | μm | |
| The warpage (radius) | ≥4 | m | |
| Environmental characteristics（1310nm、1550nm、1625nm） | |||
| Temperature additiona
l attenuation |
-60℃ ～+85℃ | ≤0.05 | dB/km |
| Temperature-humidity cycle
additional attenuation |
-10℃ ～+85℃，98% Relative humidity | ≤0.05 | dB/km |
| Flooding additional
attenuation |
23℃，30 days | ≤0.05 | dB/km |
| Hot and humid additional
attenuation |
85℃和85% Relative
humidity，30 days |
≤0.05 | dB/km |
| Dry heat aging | 85℃ | ≤0.05 | dB/km |
| Mechanical properties | |||
| Screening tension | ≥9.0 | N | |
| The macro bend Additional
attenuation 1CircleФ7.5mm 1CircleФ10mm 10CircleФ15mm 1CircleФ7.5mm 1CircleФ10mm 10CircleФ15mm |
1550nm 1550nm 1550nm 1625nm 1625nm 1625nm |
≤0.330 ≤0.080 ≤0.015 ≤0.710 ≤0.160 ≤0.095 |
dB dB dB dB dB dB |
| Coating peeling force | Typical average | 1.5 | N |
| Dynamic fatigue parameters | ≥20 | ||
