M. Romagnoli, L. Socci, L. Bolla, S. Ghidini, P. Galli, C. Rampinini, G. Mutinati, A. Nottola, A. Cabas, S. Doneda, M. Di Muri, R. Morson, T. Tomasi, G. Zuliani, S. Lorenzotti, D. Chacon, S. Marinoni, R. Corsini, F. Giacometti, S. Sardo, M. Gentili, G. Grasso
Silicon is the dominant material in the microelectronic industry and silicon photonics is rapidly gaining importance as a
technological platform for a wide range of applications in telecom, and optical interconnect. It allows the implementation
of many photonic functions through the use of wafer-scale technologies normally used for advanced CMOS-processing.
In this paper some of the most important issues toward a practical implementation of Silicon photonics into an industrial
device will be addressed: low loss waveguides, polarization handling, tunability, hitless switching. A tunable Add-Drop
multiplexer has been chosen as a case study of a fully integrated device.
The past decade has seen a huge increase of demand for fast data communication; this stimulated the optical research towards the design and development of both terrestrial and submerged long-haul full-optical transmission systems. More specifically, the submarine systems are required to be highly reliable: minimum lifetime of 25 years with very low maintenance, which implies the request for long term reliability for each component. In this work a reliability estimation approach based on hi-rel optical component degradation study is discussed. Results of a long-term test performed on optical isolators for submarine applications are reported. The experimental optical bench set-up, based on switching matrixes, developed at Pirelli Reliability Labs is also presented.
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