The main aim of this work is to prepare a reliable technology of fibreoptic GRIN matrices of big dimensions and high optical quality. Periodical micro-lens matrices are important construction components of image, guided- wave and information optoelectronics. They are used for building of optical memories, multiplexers and multiwave demultiplexers, network's couplers and nodes. The gradient matrices are a foundation of further development of microoptics. In our laboratory of glass technology we have performed extensive investigations of three groups of glasses specially designed for GRIN matrix microoptics. These glasses were: - cesium glasses of the lowest possible dispersion and the highest possible refractive-index, - low dispersion oxyhalides glasses, - glasses or glass-like materials of the ultimately low dispersion (ultra-low-dispersion glasses). We have investigated the susceptibility of these glasses to ion exchange processes in the context of their chemism, structure, type of ion exchange, ion radii, genesis of technological process etc. These materials have been investigated having in mind their applications in imaging grin matrices. These matrices have been manufactured by a newely developed mosaic-assembling technology (Proc. SPIE 867, 1987). This particular work concerns the first group of glasses. The parameters of lenses and micro-matrices were given and discussed.
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