Time impulse response of second order PMD in single-mode fibers

The paper provides, for the first time, the exact linear frequency response for PMD fibers, lip to second order. Power overshoots on the transmitted sequences are generated by a linear rotation of the principal states of polarization (PSP). We give for the first time a closed-form expression for the time impulse response of PMD, up to second order. It allows a fast estimation of the PMD induced time pulse deformation on long bit sequences. We showed, both numerically and experimentally, that the effects of a PSP linear rotation is to generate power overshoots, well focalized on the transmitted bit sequence.