▎ 摘　　要

NOVELTY - The device has a silicon substrate (1) provided with a sapphire layer (2). A first graphene nanometer strip waveguide (3) is fixed on the sapphire layer that is matched on a first graphene resonant cavity (5) and a second graphene resonant cavity (6). The first graphene resonant cavity is directly coupled to the second graphene resonant cavity. The first graphene nanometer strip waveguide and a second graphene nanometer strip waveguide (4) are orderly arranged along a straight line. A graphene resonator is fixed with a single-layer graphene. USE - Dual graphene resonant cavity coupled waveguide based logic OR gate device. ADVANTAGE - The device is small in volume, and implements a logic OR gate function, and improves extinction ratio and characteristics of ultra-fast. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a dual graphene resonant cavity coupled waveguide based logic or gate device. Silicon substrate (1) Sapphire layer (2) Graphene nanometer strip waveguides (3, 4) Graphene resonant cavities (5, 6)