The growing need for information storage and transmission leads to a major paradigm shift, in which electronic systems are gradually replaced by so-called photonic systems — using photon as the elementary particle of a laser beam — that will achieve an all-optical processing of information. The use of photonics as a science and technology to manipulate, store, transmit and process information in optical form is now the focus of many research teams and businesses in Europe. For many years, participants in this project have contributed to the development of innovative solutions for the optical processing of information using photonic systems. Examples include the development of reconfigurable optical interconnections using the interaction of space solitons in photorefrant crystals, a patented solution, or the development of very high-speed optical cryptography solutions using optical chaos.The proposed project aims to further develop this research and in particular to study the applications of semiconductor and/or photorefractive materials for the all-optical processing of information.