Abstract

We investigate the performance of the induced double-amplitude population grating (DAPG) based on spatially periodic modulation by the optical non-overlapping interaction of unipolar pulses. Considering the two typical allowed pulse configurations, the time delay requirements and the relationship between the grating amplitude, phase shift and the time delay were analyzed in detail. The results reveal that the grating amplitudes and phase can be dynamically controlled by the suitable time delay between the excited pulses. The population gratings presented here maybe offer more potential applications in nonlinear optics.

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