▎ 摘　　要

NOVELTY - The utility model relates to optical fiber phase modulation technology field, more specifically, claims a phase modulator with photoelectric detection function, comprising: optical fibre, micro-strip electrode, graphene film and PMMA film; the optical fibre is composed of a cladding and a fibre core; the cladding covers the fibre core; the outer side thereof is provided with an integrated region; the integrated area is the area of the optical fibre one side concave inwards; the area has an opening to expose the fibre core; the edge of the opening is provided with a micro-strip electrode; the graphene film is covered on the opening of the integrated area and the micro-strip electrode; the PMMA film is covered on the graphene film. Compared with the existing technology, the utility model has two functions of photoelectric detection and phase modulation.