The aim of the project is to develop fiber optic modules with shaped chromatic dispersion characteristics, designed to build tunable light sources in the near-infrared range. Such a product has a very high economic justification due to limited competition and a wide range of customers. The consortium (UMCS, PWr, FIBRAIN) has complementary competences in fields such as physics, optoelectronics and fiber optoelectronics, with access to key apparatus, which guarantees a comprehensive implementation of the project. The preliminary studies carried out confirmed the possibility of achieving the intended functionality of fibre modules and the aim of the project is to shift the results already obtained to the level allowing for introduction into business practice. The division of tasks within the consortium shall be as follows: — design and optimisation of the structure of special photonic and transient fibre optics, characterisation of linear optical parameters of produced fibre optics and non-linear parameters, demonstration of the practical possibility of using developed modules, defining the optimal configuration of modules (PWr); — development of technology for repetitive production of microstructured photonic fibres with low and high duality (UMCS); — development of technology for producing hole-assisted fibre optics (as potentially cheaper alternatives to PCFs in certain applications), transient and connecting photonic fibres with telecommunication fibres, integration of developed components into a module with defined application parameters (FIBRAIN). It should be emphasised that as a result of the project, fibre optic modules will be developed, characterised not only by dry pa