Optical cross-connect with multigranular architecture

摘要

The optical mixer (1000) includes a first and second switching stages (100, 200) for composite digital signals. The redirection ports (11 - 42) of the first matrix are coupled to the direction input ports of the second matrix. The mixer also comprises an optical concentrator (7) connected to a wavelength demultiplexing circuit. The optical mixer (1000) includes a first switching stage (100) for composite digital signals comprising a first optical switching matrix (1-4), and wavelength band demultiplexing circuits (10,20) and multiplexing circuits (10, 20). A second switching stage (200) including a switching matrix (5) is associated with wavelength band demultiplexing circuits (61-64) and multiplexing circuits (61 - 64). The redirection ports (11 - 42) of the first matrix are coupled to the direction input ports of the second matrix. The first optical matrix is composed of a series of optical switching sub-matrices arranged independently in parallel. The number of output redirection ports (11 - 42) from the first matrix is greater than the number of wavelength demultiplexing circuits (61-64). The mixer further comprises an optical concentrator (7) having input ports (71-78) connected to the redirection ports of the first matrix, with the output ports (71 - 74) connected to the wavelength demultiplexing circuit.