▎ 摘　　要

NOVELTY - The modulator has an incident light enters a D-type twin-core fiber (4) from the left side of a core (32). The magnitude of the voltage is controlled to change the effective refractive index of a graphene layer (1). The output energy of both cores will be controlled by voltage. The light output from the cores is used as the two arms of the M-Z modulator. USE - Multilayer graphene multi-output mode modulator. ADVANTAGE - The modulation effect can be changed by changing the number of layers of graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of modulator. Graphene layer (1) D-type twin-core fiber (4) Metal electrode (5) Fiber core (31) Core (32)