▎ 摘　　要

NOVELTY - Optical waveguide amplifier comprises a substrate, at least two optical waveguides located on the substrate and arranged in parallel along the first direction parallel to the substrate, where there is a gap between two adjacent optical waveguide, a doped medium layer doped with rare earth element located in the gap, where, in the second direction perpendicular to the base, the height of the doped dielectric layer is greater than or equal to the brightness of the optical wave guide, and the refractive index of the de-doped material layer is less than or less than that of the light waveguide. A graphene layer covers and contacts the de -doped materials layer, a first electrode is electrically connected with the graphene layer, and a second electrode is in contact with the substrate. USE - Optical waveguide amplifier of silicon-based doped rare earth element used in high speed optical transmission system. Can also be used in photonic circuit integration. ADVANTAGE - The doped dielectric layer and two adjacent optical waveguides form a higher refractive index contrast, so as to form a better slit structure, using the strong light field limiting effect of the slit structure to reduce the loss of the optical signal, and improving the amplification effect of doped ion in the doped layer to optical signal. The optical waveguide amplifier is provided with a doped rare earth ion doped with rare earth element located in the gap to enhance the gain substance of optical signal to realize amplification effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing the optical waveguide amplifier. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of an optical waveguide amplification system shown. Higher refractive index optical waveguide (11) Low refractive index doped dielectric layer (12) Control graphene layer (13) First electrode (14) Second electrode (15) Waveguide width (D1) Width (D2) Height (H1) Height (H2)