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Conception de commutateurs micro-usinés sur silicium pour les réseaux tout optiques

Abstract : Fiber-optic systems have been used commercially since the 1980s for transmission of high bit-rate signals over long distances. More recently, the introduction of optical amplifiers and wavelength division multiplexing have permitted the transmission and regeneration of very high bit-rate signals directly in the optical domain. However, the weak connectivity in present networks makes still inefficient the use of the available bandwidth. Nowadays, fiber-optic systems are evolving to progressively allow, not only the transmission but the switching of signals directly in the optical

Among the existing technologies to achieve optical switching, free-space micromachined devices in silicon have appeared as one of the most promising. These devices present lower levels of insertion loss and cross-talk when compared to devices based on waveguides, especially in high port-count cross-connects.

Our research has been focused on designing micromachined optical cross-connects. After having revealed the advantages and possible applications of these devices in the optical networks, we have
modeled the propagation of signals in the optical cross-connects and we have applied these models to calculate the insertion losses. A comparative study has been carried out on electrostatic actuators and several models have been obtained by coupling the electrostatic and structural theories. Multi-language cosimulation has been examined as a methodology for global validation of optical cross-connects. Finally, we have explored the manufacturing technologies through fabrication of a prototype by surface micromachining.
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Contributor : Lucie Torella <>
Submitted on : Friday, June 6, 2003 - 12:11:28 PM
Last modification on : Friday, December 11, 2020 - 8:28:03 AM
Long-term archiving on: : Friday, April 2, 2010 - 6:35:30 PM


  • HAL Id : tel-00002957, version 1




S. Martinez. Conception de commutateurs micro-usinés sur silicium pour les réseaux tout optiques. Micro et nanotechnologies/Microélectronique. Institut National Polytechnique de Grenoble - INPG, 2002. Français. ⟨tel-00002957⟩



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