Rare-earth-doped glasses and glass ceramics for integrated optics
we focus the attention of the reader on their important optical, structural, and spectroscopic properties. Of particular interest is the role of tin-dioxide-based glass ceramics as effective sensitizers of the RE ions luminescence. Novel spectroscopic results regarding the Er-activated SiO2-SnO2 system are also presented with a discussion about the different possible structures of integrated optics. The differences between the top-down and bottom-up fabrication techniques are presented, as well as some well-consolidated results about the transparent glass ceramics doped with RE ions. In this regard, it is worthy to note the results obtained in a hybrid glass-ceramic fabricated employing an amorphous matrix SiO2-HfO2 loaded by nanoparticles of lithium lanthanum tetraphosphates doped with different concentration of Eu3+ ions. Finally, we conclude the chapter with the perspectives of glass materials for integrated optics.
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