| 摘要 |
The present invention relates to an optical component of the waveguide array spectrograph type, the component comprising an inlet coupler and an outlet coupler between which said array extends, and including optical channels constituting inlets and outlets for the inlet and outlet couplers, the component being suitable for multiplexing and/or demultiplexing two optical signals of different wavelengths conveyed by two channels of the same coupler, wherein the waveguides of the array have lengths that are distributed in such a manner that two spectrum ranges of different center wavelengths both occur in said same coupler, said different wavelengths that are conveyed by the two channels each belonging to a different one of the free spectrum ranges.
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