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Transparency in optical networks

: Bachus, E.J.

European Institute for Communications and Networks, Geneve:
European optical communications and networks 1993. Proceedings. Papers on networks : Eleventh Annual Conference on European Fibre Optic Communications and Networks, The Hague, June 30 - July 2, 1993
Basel: Verl. AKM, 1993
ISBN: 3-905084-16-3
Conference on European Fibre Optic Communications and Networks (EFOC&N) <11, 1993, s'Gravenhage>
Fraunhofer HHI ()
frequency division multiplexing; information theory; optical communication; optical communication equipment; optical links; optical networks; transparency criteria; light-signals; outstanding optical capacity; optical communication links; optical frequency multiplexing techniques; fibre length; amplifiers; switching nodes; transparent frequency switching matrix; 1.3 to 1.6 micrometers; 320 tbit/s

Besides transparency criteria for the conventional parameters of the light-signals in an optical network the transparency with respect to the outstanding optical capacity based on the fundamental theory of Shannon is investigated for optical communication links. It is calculated that the wavelength window between 1.3 and 1.6 mu m is transparent for 320 Tbit/s as an upper bound which can be approached by proper optical frequency multiplexing techniques. The principal constraints of fibre length, amplifiers and switching nodes placed on the capacity resulting in a reduction of transparency are outlined and the design for a high transparent frequency switching matrix is presented.