▎ 摘　　要

NOVELTY - The method involves forming graphene on a large area substrate. A silicon dioxide protective layer is plated on a surface of the graphene. The large area substrate is formed by a metal foil that is selected from one among a copper foil, a gold foil, a silver foil and an aluminum foil. A chemical vapor deposition process is carried out for forming the graphene on the large area substrate, where the graphene is made of one among a single layer, a double layer or multiple layers. USE - Method for manufacturing a graphene based saturable absorption mirror. ADVANTAGE - The method enables providing high saturation intensity, rapid recovery time and better environmental-friendly effect, constructing a mirror in simple and easy manner, maintaining integrity of a chemical structure, preventing damage of the graphene, reducing impurities by using the silicon dioxide protection layer and production cost, and realizing large scale industrial production and packaging. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a graphene based saturable absorption mirror. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a graphene based saturable absorption mirror.