▎ 摘　　要

NOVELTY - The detector (130) has a graphene optical transmission line (120) formed on a first dielectric layer, where the detector is formed on the first dielectric layer, and detects light transmitted along the graphene optical transmission line. Electric wires (141, 142) are formed on the detector. Metal pads (150, 160) are positioned at ends of the detector and connected with the electric wires. A second dielectric layer is formed on the transmission line, where the detector detects an intensity of light incident in a horizontal direction with respect to a surface of the transmission line. USE - Graphene optical detector for detecting an intensity of light and generating an electric signal. ADVANTAGE - The detector uses the graphene optical transmission line to avoid a need of additional optical waveguide structure. The detector increases size of optical current, if a size of a region of a contact point between the detector and electric wires are increased. The detector integrates the graphene optical transmission line for optical signal transmission with the detector for optical signal detection in an efficient manner. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of electric wires located in a direction vertical to a graphene optical transmission line. Graphene optical transmission line (120) Graphene optical detector (130) Electric wires (141, 142) Detector Metal pads (150, 160)