1、We sum up the rule of the bistability with the change of coupler reflectivity and single-pass linear phase shift ?
2、This theory is not only well consistent with the conventional Z-scan theory in the case of smaller nonlinear phase shift, but also can fit for the larger nonlinear phase shift.
3、Control pulse is coupled into this pulse shaper by wavelength division multiplexer. Nonlinear phase shift of signal laser is induced by control pulse because of cross phase modulation.
