the invention relates to a laser scribing system for structuring substrates , said system being characterised in that the planar rotor together with the laser device has a mass that is essentially less than the mass of the table and the substrate such that the machining speed is increased , and the substrate arranged on the table is still during the machining , or moves in a direction at a constant speed vsubstrat such that vibrations are reduced and the precision of the scribing traces increased . furthermore , other planar rotors can be mounted with a laser device without changing the structure of the machine such that the productivity is easily increased . ; the laser light is also guided , by means of optical fibres , as close as possible to the machining point , reducing the free length of the light beam such that the adjustment requirements for the optical - mechanical components are reduced and the system is more robust .