Method and an arrangement for preparation of optical fibers

摘要

The invention relates to a method and an arrangement for applying a coating on an end of an optical fiber by dipping said end into a unsolidified coating liquid. In a first sequence, the fiber end is moved towards the surface ( 18 ) of the liquid by a gripping means ( 11 ). The distance between the end face ( 26 ) of the fiber and the surface of the liquid is measured continuously by measuring means including a vision camera ( 23 ). The measured actual distance value is compared with a preset distance value and the first moving sequence is ended when the actual distance value is equal to the preset value. In a second sequence, the fiber end is dipped a predetermined depth in the liquid.