Partenaires et organisations internationales
(Anglais)
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Instituto Nazionale per la Fisica della Materia, Genova (I), Consejo Superior de Investigationes Cientificas, Madrid (E), CNRS-Laboratoire de nanophysique, Paris (F), University College Cork (IRL), University of Ulm (D), KTH Stockholm (S), Université Pierre et Marie Curie, Paris (F)
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Résumé des résultats (Abstract)
(Anglais)
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Op to-electronics will have to play a crucial role in future development of communications and information processing and, as a consequence, will influence very much our society in the next years. The Vertical Cavity Surface Emitting Lasers (VCSEL) are likely to become much more important than standard semiconductor lasers in the near future in op to-electronic devices. In order to reach this major breakthrough, an effort must be faced for solving some problems related to the VCSEL behaviour; in particular for polarisation inst abilities pattern complexity, modulation patterning effects, low power, thermal lensing and feedback effects. Even more important, VCSEL special characteristics can be fruitfully used for improving systems performance, for instance with polarisation control, by employing spatial structures for information processing, b y achieving quantum-limited performance.
The main objectives of the Project are the understanding of the underlying physical mechanisms relevant to VCSEL operation, the subsequent improvement of their efficiency and the transfer of this knowledge to VCSEL based systems. These objectives are achieved by exploiting new possibilities associated with VCSEL features and by novel kind of lasers and device concepts. At this purpose, a tight collaboration is necessary among laboratories with dev ice construction facilities, laboratories with non-linear and quantum optics and electronics expertise, theoretical groups. Indeed, the samples production requires a large research infrastructure and few European groups (and in few European countries) have this possibility. Besides, a complete characterisation and under standing of the laser behaviour implies specialised competencies and must be per formed by groups with the necessary experience. This network will provide the link between the most important European groups in the involved research fields, connecting device production, characterisation and implementation in communication systems.
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