▎ 摘　　要

NOVELTY - The utility model claims a high-efficient optical modulator prepared by graphene, comprising a back, a second graphene layer, a second electrode, a third insulating layer, a machine body, a photoelectric converter, a laser emitting hole, a laser catheter, an electric signal transmitting tube and a signal receiver; the machine body is provided with a signal receiver and a signal receiver on one side of the photoelectric converter, the photoelectric converter is set at one side of laser tube, the laser catheter is provided with a laser emitting hole, the photoelectric converter is provided with a substrate and an oxide layer on one side of the substrate, one side of the oxide layer provided with a semiconductor layer and a first insulating layer on one side of the semiconductor layer. This utility model through setting the substrate, oxide layer, the semiconductor layer, the first graphene layer and the second graphene layer, which can improve the effect of strong graphene and light provides the photoelectric conversion of high intensity, after the pair of integrated miniaturization and high speed optical chip has great significance.