Fibre Curl

A property of optical fibres that results from thermal stresses during manufacturing and is defined as the amount of curvature over any specified length of the fibre. The curl of the fibre is frozen at the time of manufacturing and is not known to vary throughout its operating life. It does, however, vary along its length and so it is useful and considered good practice to measure the curl even within a cable manufacturing environment to ensure the consistency of the product.