Patent ID: 6545784
Filing Date: 2003-04-08
Classification: H04J,H04M,H04Q

Abstract:
An optical cross connect unit comprising:M wavelength separating sections for receiving multiplexed optical signals each having N kinds of wavelengths different from each other through M optical fibers, respectively, and for wavelength-separating each of said multiplexed optical signals into N optical signals; M optical reproduction relay sections each for conducting an optical reproduction and relay in a manner of making a conversion of each of said N optical signals, wavelength-separated in each of said wavelength separating sections, into an electric signal and then modulating it with a desired optical wavelength; a refill section for mutually refilling M sets of optical signals optically reproduced and relayed in said optical reproduction relay sections; a focusing section for focusing said M sets of optical signals refilled in said refill section; and a light source unit for supplying input lights having desired wavelengths to be modulated in said M optical reproduction relay sections, said light source unit including: N light sources for outputting lights having said N kinds of optical wavelengths; a multiplexing and branching section for multiplexing said lights from said N light sources to produce a multiplexed light having N kinds of optical wavelength components and further for branching said multiplexed light into MÃ—N lights to output them as multiplexed and distributed lights; M wavelength filter sections for distributively receiving N multiplexed and distributed lights of said MÃ—N multiplexed and distributed lights branched in said multiplexing and branching section to output N lights due to the passage of only arbitrary wavelengths of said N kinds of optical wavelengths; and a wavelength setting control section for setting optical wavelengths, which pass through said wavelength filter sections, so that they differ from each other, wherein said N lights from each of said M wavelength filter sections are supplied as said input lights.