SINGLE MODE OPTICAL FIBRE AS WELL AS OPTICAL COMMUNICATION SYSTEM

摘要

The present invention relates to a single mode optical fibre comprising a first central region having a radius r 1, a maximum refractive index value n 1 and at least one second ring surrounding said first central region, which second ring has a radius r 2 and a minimum refractive index value n 2, wherein n 2 <n 1. The present invention furthermore relates to an optical communication system for multi-channel signal transmission.