| 摘要 |
PURPOSE:To reduce the coupling losses owing to construction parameter differences by containing the optical fibers of the same parameter structure within the same groups of optical fiber cables and connecting the optical fibers within the same group with each other at the cable connecting. CONSTITUTION:Optical fibers 10 are divided to regions 11 thru 14 varying with construction parameters such as core diameter, refractive index difference, outside shape, ellipse, eccentricity and refractive index distribution. If the optical fibers of each of the regions 11-14 are trisected to the same groups 21-24 of the optical fiber cables 20A-20C and the optical fibers in the same groups 21-24 are connected with each other at the connecting of the cables 20A-20C, then the optical fibers of the same construction parameters are connected and the coupling looses owing to the differences in the construction parameters decrease. |
