Optical fiber transmission line, optical fiber transmission system and production method thereof, and optical fiber combining method

摘要: The optical fiber transmission line according to the present invention comprises first fibers having dispersion values greater than average value D av over entire distance and second less , wherein is in anomalous region, respective lengths L i ' of are shorter soliton length Z 0 (wherein an arbitrary natural number), relationship between larger differences satisfies following condition: (L.sub.i +L.sub.i ')/Z.sub.0 <0.35/{1+0.20(the D.sub.i '/D )}