METHOD OF MANUFACTURING AN OPTICAL FIBRE HAVING VARIATIONS IN THE REFRACTIVE INDEX

摘要

A method of manufacturing an optical fibre, which method comprises the steps of : i) providing an optical preform, ii) heating one end of said optical preform, iii) drawing an optical fibre from the heated end of the optical preform, iv) cooling the optical fibre thus drawn into step iii), v) winding the cooled optical fibe onto a reel, with a change in the tension buildup being introduced into the optical fibre in step iv) resulting in variations in the refractive index of the optical fibre as a function of the longitudinal position.