| 摘要 |
PURPOSE:To easily amplify and control an optical multiple signal, by inputting a frequency split optical multiple signal to a spectroscope, and outputting it through a photoelectrical converter at every output end. CONSTITUTION:An optical multiple signal is inputted from an input terminal 1 and is inputted to a spectroscope 2 constituted of an aggregate of an optical band pass filter. The spectroscope 2 emits a specific wavelength light beam from a specific end of the output end. Each band pass filter 3 allows only the specific wavelength light beam emitted from the specific end of the spectroscope 2 to which said filter has been coupled to pass through. Accordingly, the optical multiple signal is separated, and an electric signal is fetched from an output terminal 5 of a photoelectrical converter group 4 at every wavelength. |
