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The Fibers adopted by our company
are made by famous factaries from abroad. The relevant technical
specifications comply with or exceeds the ITU-T G.652B
recommendation.
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 1.Attenuation
Constant
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2.Geometrical
Specifications
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3.Chromatic
Dispersion
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@1288-1339nm<=3.5ps/(nm.km)
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@1271-1360nm<=5.3ps/(nm.km)
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Zero Disp.WL. 1300-1324nm
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Max.Zero Disp. 0.093ps/(nm.km)
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4.Cutoff
Wavelength
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λc =1150-1330nm(measured
in a 2m
fiber)
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λcc<=1270nm(measured
in a 20m
fiber + 2m
cable )
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5.bending
loss(dB)
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radius 37.5mm,100
loose turns,at 1550nm<=0.05dB.
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6.Fiber
mechanical strength test:
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The fibers should
be proof tested over the whole length to an equivalent level og
stress of
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more than 0.69Gpa(the strain
is about 1%)for 1 second.
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7.Attenuation
lrregularity:
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At the curve of
fiber's backward scatter,the attenuation value measured on any 500m fiber
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subtract
the mean attenuation value measure every 500m over the whole length of
the fiber,and
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the
worst value should not be more than 0.05dB.
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8.Wavelength
induced attenuation
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9.Polarization
mode dispersion coefficient(PMD)
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<=0.2PS/√km
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Note:
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WL. : wavelength
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M.F. : mode field
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C.C. :core concentricity
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Dia :diameter
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Disp. :dispersion
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Att. :attenuation
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