COUNTERWEIGHT AND ATTACHMENT COMPOUND

A method for producing a preform of an anti-resonant hollow-core fiber, comprising the method steps ofa) providing a cladding tube, which has a cladding tube inner bore and a cladding tube longitudinal axis, along which a cladding tube wall extends, which is limited by an inner side and an outer sideb) preparing a number of anti-resonance element preforms, which consist of several nested tubular structural elements, comprising an ARE outer tube and an ARE inner tube inserted therein, wherein the structural elements have a structural element longitudinal axis,c) arranging the anti-resonance element preforms on the inner side of the cladding tube wall, andd) thermal fixing of the anti-resonance element preforms to the cladding tube wall by means of heat input.