The unsymmetrical delay compensation in WDM time transmission using optical fiber

Abstract

The transmission of optical wave in fiber is analyzed, and the asymmetry of transmission delay which results from phenomena of chromatic dispersion is computed under the condition of density WDM (DWDM) and sparse WDM (SWDM). Then we proposed a scheme of DWDM transmission delay compensation in time transmission using optical fiber. The theoretical calculation shows that when calculated on 50 km transmission range, the time difference when using two waves of wavelength difference of 1 nm is nearly three orders of magnitude less than when using two waves of wavelength of 1550 and 1310 nm. © 2012 Springer-Verlag.