▎ 摘　　要

NOVELTY - The detector has a micro-ring silicon waveguide arranged on a side of a rectangular silicon waveguide. A micro-ring resonant cavity structure is arranged in the rectangular silicon waveguide. A graphene layer is arranged on a silicon waveguide layer and covered on the rectangular silicon waveguide and the micro-ring silicon waveguide. A first metal electrode is arranged on a side of the silicon waveguide layer covered with the graphene layer and located on the graphene layer. A second metal electrode is arranged on another side of the silicon waveguide layer and separated from the graphene layer. USE - Graphene based photoelectric detector. ADVANTAGE - The detector has better responsiveness without extending absorption length and without affecting bandwidth. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a graphene based photoelectric detector.