Abstract
LiNbO3 is an established electro-optic Pockels cell used in optical/optoelectronic switching and data processing for superfast communication. The frequency of a coherent and polarized light passing through the material can be linearly changed by the application of sawtooth biasing signal in it. The change of frequency directly depends on the slope of the sawtooth biasing signal. In such connection the authors propose a new scheme of using a multiple number of LiNbO3 crystals each biased by sawtooth pulse for a sharp increase of the frequency of the light passing through the crystals, followed by multiple number of feedback (multi-passing) mechanism through the crystals.
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