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Theme: Silicon Micromachined Cross-Connects in Optical Networks
Date: Vendredi 15 décembre


Sergio MARTINEZ received the B.S. in Electrical Engineering and the M.S. in Control Engineering from ITESM, Monterrey, Mexico in 1983 and 1985 respectively, and the M.S. in Electronics at PII, Eindhoven, Netherlands in 1990. In 1984, he joined the Electrical Engineering Department of ITESM where he has worked as a full-time professor until 1997. He is currently a Ph.D. student at TIMA Laboratory; his research interests include micromachining and microsystems applications in Optical Networks. He is a student member of IEEE, SPIE and OSA.


At present, fiber-optic telecommunications systems are widely deployed and used to transmit high data rates; substitution of electronic repeaters by Erbium-doped optical amplifiers and introduction of multiple carrier wavelengths have allowed to increase transmission bit-rate and repeater distance although these advantages have been mainly useful in long-haul point-to-point communication systems; additionally to these important developments, an equally good utilization of fiber bandwidth in more complex networks requires Optical Cross-Connects (OXCs). Relatively established technologies like Lithium Niobate and Silica on Silicon can be used to fabricate waveguide-based OXCs but recent developments on Silicon Micromachined Free-Space components show this later approach is a superior alternative in some cases; compared to waveguide-based components, Silicon Micromachined Free-Space devices present lower insertion losses and lower cross-talk, which makes Silicon Micromachining a serious concurrent technology, notably in crossconnects with high number of input/output ports. This presentation focuses on Silicon Micromachined Free-Space Optical Crossconnects — their role in the future AONs, expected functionality, technology advantages, fabrication approaches, as well as limitations.