Zte Unitrans ZXMP M600 Technical Instructions page 66

ZXMP M600 (V1.0) Technical Manual
G.652A and G.652 B single-mode optical fibers, that is, the ordinary fibers
mentioned above have a large dispersion at 1530nm~1565nm of Band C and
1565nm~1625nm of Band L, which is generally 17ps/nm·km~22ps/nm·km.
When the system rate is 2.5Gbit/s or higher, dispersion compensation is required.
G.652A and G.652 B fibers are widely applied in transmission networks at
present.
A.2 Full-wave Fiber
Full-wave fiber is numbered as G.652 C&D in ITU-T Recommendations. It is
one kind of G.652 fiber. Its full name is wavelength-expanded non-dispersion
single-mode shifted fiber.
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The full-wave optical fiber eliminates OH ions near the 1385nm wavelength and
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thus also eliminates the appended peak attenuation caused by the OH ions. Thus,
the fiber attenuation is only determined by the internal scattering loss of the
silicon glass.
The attenuation of the full-wave fiber becomes even at the band of
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1310nm~1600nm. As internal OH ions are already eliminated, no peak
attenuation will occur even when the fiber is exposed to hydrogen gas and the
long-term attenuation is reliable. Except that there is no peak attenuation,
full-wave fiber is the same as the ordinary standard G.652 clad optical fibers.
Full-wave optical fiber can provide a complete transmission band from 1280nm
to 1625nm. The available wavelength range is about 1.5 times of the wavelength
range of ordinary fibers.
A-2