The predictor-corrector split-step Fourier method (SSFM) is proposed for solving a nonlinear Schrodinger equation. In comparison with the symmetrized SSFM, the proposed method greatly decreases the relative error and increases the computing speed by /spl sim/2.8 to /spl sim/5.5 times at the same accuracy.
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Liu et al. (2003) studied this question.
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