Method and arrangements for dispersion equalization of optical fiber transmission lines

摘要: The dispersion effects in an optical fiber transmission line are equalized by producing a predetermined delay characteristic for each wavelength of beam having finite bandwidth which is the inverse given propagated through line. This accomplished launching shorter components at low angles with respect to axis into and longer high Two arrangements disclosed accomplish above-mentioned technique. One arrangement includes time flight dependent annularly ruled grating other passing moving acoustic wave beam.