Dispersion compensating fiber for low dispersion slope transmission fiber and optical transmission line utilizing same

摘要

A transmission line comprising the DC fiber, and that for a low slope transmission fiber (such as NZDSF). DC oil has a smaller value of the core delta (△ 1), a large value of Motor bit delta (△ 2) is Motor agent, and the amount of delta rings (△ 3) surrounding the central core having a more than 1.8% -0.9% It comprises a refractive index profile having a ring surrounding a Motor agent. The refractive index of the DC fiber has a profile selected to provide a small value к 270㎚ larger than 165 in both smaller than -40 -87㎰ / ㎚ / ㎞ greater total dispersion, and 1550㎚. When used in the transmission lines, DC fiber transmission having a total dispersion between the C, L and C + L in total to provide a lower average residual dispersion at that time, such as transmission lines 4 and 10㎰ / ㎚ / ㎞ optical fiber and in 1550㎚ and a small dispersion slope than 0.045㎰ / ㎚ ² / ㎞.