In this bachelor thesis, it is described implementation of a new aluminium cutting technology with fiber laser, which brings many benefits in the production and thus of the business undertaken in terms of optimising production process by reducing production time by number and quality processing of cutting. The introductory part of the thesis describes the general data on lasers and what differentiates fiber lasers from other lasers, as well as their development through history. Then the division of the lasers for processing is indicated and the cutting process is described. Laser operations are described in detail as well as the required cutting gas, processing parameters, advantages but also the inevitable shortcomings that come with these processes. An economic analysis was also carried out for the purpose of assessing direct and indirect costs of laser cutting. The final cost-efficiency of the fiber laser is locked with all the advantages and disadvantages of this relatively new technology.