Patent ID: 7171119
Filing Date: 2007-01-30
Classification: H04J,H04Q

Abstract:
1. An optical path cross-connect device for accommodating an inter-office transmission line for transferring wavelength-multiplexed optical signals and a plurality of intra-office transmission lines for transferring a wavelength-non-multiplexed optical signal, comprising: a wavelength branching unit provided with said inter-office transmission line, for demultiplexing the wavelength-multiplexed optical signals entered from said inter-office transmission line to a first optical path group; an intra-office signal input unit provided with said intra-office transmission lines, for repeating the wavelength-non-multiplexed optical signal entered from each of said intra-office transmission lines to said first optical path group and distributing the repeated wavelength-non-multiplexed optical signal to “m” pieces of routing units; the “m” pieces of routing units for inputting thereinto an optical signal outputted from any one of said wavelength branching unit and said intra-office signal input unit via said first optical path group, and for converting said input optical signal into a predetermined wavelength to thereby output a wavelength-converted optical signal to a second optical path group, said “m (symbol “m” being an integer and also being larger than 1)” pieces of routing units being subdivided in a unit of at least “n (symbol “n” being an integer and also being larger than 1)” wavelengths as wavelength ranges to be processed by the respective routing unit are different from each other; a wavelength combining unit for accommodating thereinto said second optical path group and for selectively wavelength-multiplexing said wavelength-converted optical signal; and an intra-office signal output unit for accommodating thereinto said second optical path group and for selectively repeating said wavelength-converted optical signal.