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The results presented in this communication not only demonstrate the viability and outstanding properties of the SiO2- SnO2 glass-ceramics for photonic applications but also put the basis for the fabrication of solid state and integrated lasers. The next steps of the research are the fabrication of the channels and mirrors exploiting the photorefractivity as well as to draw glass ceramic fiber, checking the lasing action and corresponding functional characteristics. Finally, it is worth noting that the dynamic of the energy transfer from the nanocrystals to the rare earth ions is still an exciting open question.
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You will have access to both the presentation and article (if available).
This course provides attendees with a basic working knowledge of modeling and fabrication of integrated optics devices that are required in fiber communication systems. After an introduction on waveguide fabrication technologies, with focus on sol-gel and ion exchange, and characterization techniques, several devices (e.g. for WDM systems) are analyzed in detail. Current and perspective optical systems specifications and applications will be reviewed. Critical issues (such as polarization dependency of devices) are also discussed.
This course provides attendees with a basic working knowledge of modeling and fabrication of integrated optics devices based on glass materials, still the largest class of IO circuitry, besides semiconductors, due to low cost, reliability and ruggedness. First, an introduction on waveguide design and modelling is given, showing animated models based on commercial software. Then, the different fabrication technologies, which include deposition and diffusion processes, are presented and discussed, together with the proper characterization techniques of waveguides and components. Particular attention is devoted to ion-exchange technology and to SOS (silica-on-silicon) and SOI (silicon-on-insulator) structures. Finally, several devices (e.g. 1xN splitters, MMI devices, directional couplers, add-drop filters, AWGs), which find application in WDM systems for telecom systems or in sensing systems, are analysed in detail. An overview of the components currently available on the market, as well as of foundries existing in this area (both are information very useful for SMEs entering in this area), complete the course.
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