| 摘要 |
PURPOSE:To obtain the optical delay equalizer which can compensate the wavelength dispersion of optical fibers. CONSTITUTION:The optical delay equalizer is equipped with an array waveguide type demultiplexer 1 which spatially separates a signal spectrum into several frequency components, an array waveguide type optical delay lines 3 which has different optical path lengths corresponding to the respective frequencies, and an array waveguide type multiplexer 2 which multiplexes the respective frequency components; and the array waveguide type demultiplexer 1 spatially separates the signal spectrum into the frequency components, and the optical path length difference of the array waveguide type optical delay line 3 is adjusted so as to compensate the relative delay time differences between the frequency components due to the dispersion of the optical fibers, and those frequency components are multiplexed by the array waveguide type multiplexer 2. |
