POLARIZATION MODE DISPERSION MEASURING DEVICE, METHOD, RECORDING MEDIUM

摘要

A polarization mode dispersion measuring device reduced in time required to measure polarization mode dispersion tauPMD. A polarization controller 12 allows a first second incident light to apply a synthetic incident light to an object to be measured 30 in line with a p-polarization axis s- polarization axis in a polarization separator 16. Accordingly, the phase shift equivalent value optical angle frequency differentiation and amplitude equivalent value square value of a first incident light component second incident light component in an output from the polarization separator 16 measured by a first measuring unit 20a second measuring unit 20b are respectively the phase shift equivalent value and amplitude equivalent value of a first column T11, T21 second column T12, T22 when the transfer function matrix of the object to be measured 30 is a 2 X 2 matrix to thereby allow a control unit 2 to determine the polarization mode dispersion tauPMD of the object to be measured 30. Since there is no need of switching the orientation setting of light output from the polarization controller 12 with the setting left fixed, time required to measure polarization mode dispersion tauPMD can be shortened.