▎ 摘　　要

NOVELTY - The unit has a blocking layer (2) and a grid layer (1) formed in a light wave-guide (5) i.e. electric conduction channel. A graphene layer (9) is connected with a transverse tunnel (4). A charge storage layer (3) is formed with the grid layer that is fixed with a capacitor. The charge storage layer is formed with a control gate layer. USE - Non-volatility optical memory unit for an optical device. Uses include but are not limited to light switch, micro-ring, Y-splitter, mach-Zehder interferometer and coupler (all claimed). ADVANTAGE - The unit has better graphene material usage effect, high compatibility and wide application range, and reduces power consumption. DESCRIPTION OF DRAWING(S) - The drawing shows a front sectional view of a non-volatility optical memory unit. Grid layer (1) Blocking layer (2) Charge storage layer (3) Transverse tunnel (4) Light wave-guide (5) Graphene layer (9)