| 摘要 |
The invention relates to an interferometric system (2) for selection of spectral components of an incident optical beam as a function of their wavelength, comprising: means (42) of transforming the said incident optical beam into two spatially demultiplexed beams; means (43) of shifting the phase of at least one of the said spatially demultiplexed beams, the phase shift being applied spatially so as to produce two so-called phase shifted beams, the phase of at least one of their components being shifted as a function of its wavelength; means (44, 42) of recombining the said phase shifted beams adapted to produce a first and a second output beam, each of the said output beams being multiplexed in wavelength and comprising components of the said phase shifted beams, selected as a function of a first and a second phase shift respectively.
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