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Komponenten, Systemkonzepte und Demonstratoren fuer die optische Signalverarbeitung (Photonik OSV)

By U. Bigalk, A. Ambrosy, K. Wuenstel, H. Schweizer, S. Bunse, L. Dembeck, G. Eilenberger, W. Idler, E. Lach, K. Satzke, M. Schilling and Stuttgart (Germany) Alcatel SEL AG

Abstract

Objective of the project has been the development of system concepts and the realisation of key components and sub systems for central areas of optical signal processing. Methods have been elaborated for the application of space and wavelength multiplex techniques enabling routing and switching of optical signals (up to 10 Gbit/s) in future optical broadband core and access networks. The required key components wavelength converter, space switch units and wavelength tuneable filters have been developed. After realisation of a global concept for optical nodes in the core and access area (based on broadcast and select) detailed concepts have been worked out for the realisation of optical cross connects for 2.5 and 10 Gbit/s signals. Investigations have been performed on signal formats as well as on operation, administration and maintenance in optical transparent routing nodes. Realisation concepts have been developed for the key components wavelength converter and blocking free space switch units, resulting in devices well suited and used for demonstrator applications. For tuneable optical filters a new concept was developed based on the introduction of fractal optical gratings. By means of optical 10 Gbit/s cross connect cascading experiments of optical nodes were performed. No significant deterioration of the system sensitivity was observed for optical signals fed through several cascaded cross connects. Thus, the suitability of the proposed approach for optical cross connects (up to 10 Gbit/s) and the cascading to larger routing blocks was verified. For the access regime, optical routing of digital multi-level modulated signals in space and wavelength has been demonstrated for the first time. (orig.)Available from TIB Hannover: F99B618+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

Topics: 09D - Optoelectronics, OPTICAL SIGNAL PROCESSING, OPTICAL CROSS CONNECT, ACCESS NETWORK, OPERATION AND MONITORING AND CONTROL OF OPTICAL NETWORK ELEMENTS, WAVELENGTH CONVERTER, OPTICAL SPACE SWITCH UNIT, WAVELENGTH TUNABLE FILTER
Year: 1998
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Provided by: OpenGrey Repository
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