Fibre-optical telecommunication system with one or more optical switches inserted in the optical path

Abstract

Abstract For individually controlling optical switches which are located in the optical path of light carrying useful signals and control signals, each optical switch in the optical fibre is preceded by an optical demultiplexer by means of which some of the light transmitted in dense wavelength-division multiplex with the light carrying the useful signal, carrying a control signal formed by means of a switch address and a switching command, is coupled out and supplied via an optoelectrical transducer to a decoder circuit which only allows the associated switching command to become effective at the associated optical switch when the switch address of this optical switch is received. The optical components can be combined on an IO chip on which an IC chip for the electrical assemblies is also mounted.

Inventors

• 👤 Herbert Dr.-Ing. Stegmeier

Bibliographic Details