Fig. 1. Direct implementation of the iterative method, which is a cascaded repetition of the highlighted part. Each highlighted part is an error operator followed by an add operation.

Fig. 2. Feedback implementation of the iterative method, which is a closed-loop system constructed of the highlighted part of Fig. 1. The input signal should cycle K times in the feedback loop to provide an output equivalent to the output of the direct implementation, with K repetitions of the highlighted part.

Fig. 3. Block diagram of the proposed dispersion compensating structure, including 2 cascaded sub-systems E.

Fig. 4. Two-dimensional region of transmission length z and bandwidth B values for which the proposed system can stably compensate for dispersion.

Fig. 5. Broadening factor for a sinc-shaped optical pulse conveyed by carrier wavelength λ0=1550  nm in terms of the number of cascaded sub-systems E in the compensating structure for various values of |β2FIB|z(2πB)2 and attenuation coefficient α.