The photonic materials engineering is a rapid growing field of science. This is particularly evident in the development of new compositions of optical glasses developed to specific applications. Silica glass is well known example as far as is common used in optical telecommunications and high power fiber lasers. Other applications toward research to multicomponent glasses which has unique luminescent properties.Among such materials, a special one is germanate glass characterized by transmission in the range from 0.35 μm to 5 μm, good mechanical rigidity and thermal stability required in fiber optics technology and the relatively low-phonon energy. Suggested issues comprise innovative character of basic research in the field of material engineering and photonics, behind which there is the explanation of the interaction rules of the luminescence signal shaping by controlling the structure of network of the fabricated germanate glasses. The project implementation brings new elements in the field of description of phenomena responsible for optimization of the emission efficiency in the glasses and optical fiber co-doped with lanthanide ions.
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