Patent ID: 6141130
Filing Date: 2000-10-31
Classification: H04B

Abstract:
An optical spectral equalization system for equalizing amplitudes within each channel of a group of multiplexed channels having different predetermined central wavelengths, said system comprising:a Fabry-Perot etalon having a periodically varying spectral response characterized by amplitude valleys aligned individually with the different central wavelengths;a first port optically coupled to said optical element for receiving said group of multiplexed channels; anda second port optically coupled to said Fabry-Perot etalon for providing a group of equalized channels corresponding to the group of multiplexed channels in accordance with said spectral response;so that when multiplexed channels having uneven spectral amplitudes peaked around the central wavelengths thereof are received at the first port, the second port provides corresponding equalized channels having more even spectral amplitudes around said central wavelengths within each channel than the received channels.