Furukawa electric S178, Руководство пользователя

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General Information
2-8
♦
A difference between A and B will cause a splice loss, even if d is zero. If using single-mode
fiber, the manufacturer of the fiber may be able to provide mode field diameter
specifications.
It is impossible to have perfectly centered cores, because fiber manufacturing limitations often
result in small offsets. Today’s optical fibers are well manufactured and have core eccentricity of
less than 0.5µm. However, older fiber exhibits core eccentricity near 1.0µm.
The S178 fusion splicer, which has an active core alignment function by observing the core
position with microscope and image processor, aligns the cores of both fibers to minimize the
axis offset described above.