product description
G.657 single mode fiber has better resistance to macro bendingproperty, Is a kind of the low water peak fiberwhich is not sensitive tobending, can make full use of O + S + C + L band (1260 ~ 1625 nm) totransmission. Having lower polarization mode dispersion (PMD), can meetthe requirements of high speed and long distances. G.657 single modefiber has two categories: G657 A1 and G 657 A2, mainly used for shortfiber optic cable with special purpose, great performance on O + S + C +L band; FTTX high speed light routing; can also be used for cable whichrequire a small bending radius.
production standard
production standard
Conforms to the ITU - T suggest G657 D and IEC 60793-2 - 50B1. 3kind of optical fiber technology standard and national standard GB/T9771.1
Product feature(G.657A2)
Excellent resistance to bending performance from 7.5 to 15 mm bending radius,
Low attenuation is applicable to O + S + C + L band work requirements
Fully compatible with other G652 single mode fiber
Low polarization mode dispersion (PMD) meet high speed and long distances
Precise geometry to ensure that the low welding loss and high welding efficiency
Technical Data
G.657A2 SMF features | |||
features | condition | data | unit |
optical property | |||
attenuation | 1310nm 1383nm(Hydrogenaging) 1490nm 1550nm 1625nm | ≤0.35 ≤0.35 ≤0.23 ≤0.22 ≤0.23 | dB/km dB/km dB/km dB/km dB/km |
Relative wavelengthattenuation change @1310nm@1550nm | 1285~1330nm 1525~1575nm | ≤0.05 ≤0.05 | dB/km dB/km |
Dispersion in wavelengthrang | 1285~1340nm 1550nm | ≤3.5 ≤18 | ps/(nm.km) ps/(nm.km) |
zero-dispersion wavelength | 1300~1324 | nm | |
zero-dispersion slope | ≤0.092 | ps/(nm2.km) | |
PMDQ Singlefiber maximum Fiberoptic link value(M=20,Q=0.01%) typical value | ≤0.2 ≤0.1 0.04 | ps/ ps/ ps/ | |
Cablecutoff wavelength λcc | ≤1260 | nm | |
mode field diameter MFD | 1310nm 1550nm | 8.8±0.4 9.8±0.5 | μm μm |
Attenuationdiscontinuity | 1310nm 1550nm | ≤0.05 ≤0.05 | dB dB |
geometrical features | |||
cladding diameter | 125±0.7 | μm | |
claddingnon-circularity | ≤0.7 | % | |
Coating diameter | 245±5 | μm | |
Coating/claddingconcentricity error | ≤12.0 | μm | |
Core/claddingconcentricity error | ≤0.5 | μm | |
Warp (radius) | ≥4 | m | |
deliverylength | 2.1~50.4 | km/reel | |
Environmental feature(1310nm\1550nm\1625nm) | |||
Temperatureadditional attenuation | -60℃ ~+85℃ | ≤0.05 | dB/km |
Temperature~ humidity cycle additional attenuation | -10℃ ~+85℃,98% relative humidity | ≤0.05 | dB/km |
Floodingadditional attenuation | 23℃,30 day | ≤0.05 | dB/km |
Hygrothermaladditionalattenuation | 85℃ and 85%relative humidity,30 day | ≤0.05 | dB/km |
dryhot aging | 85℃ | ≤0.05 | dB/km |
mechanical properties | |||
Screening tension | ≥9.0 | N | |
Macro bending additionalattenuation 10 circles Ф30mm 10 circles Ф30mm 1 circle Ф20mm 1 circle Ф20mm 1 circle Ф15mm 1 circle Ф15mm | 1550nm 1625nm 1550nm 1625nm 1550nm 1625nm | ≤0.03 ≤0.1 ≤0.1 ≤0.2 ≤0.5 ≤1.0 | dB dB dB dB dB dB |
Coatingpeel force | representativeaverage peak | 1.5 | N |
Dynamic fatigueparameters | ≥20 | ||
