▎ 摘　　要

NOVELTY - The polarizer comprises a micro-nano optical fiber, which is provided with a solid silicon dioxide core. The micro-nano optical fiber is provided with multiple air holes. The air hole is provided with a circular air hole and a rectangular air hole. The rectangular air hole is provided with a graphene film. USE - Used as graphene micro-nano optical fiber polarizer. ADVANTAGE - The polarizer: changes the shape of air hole in the micro-nano fiber, so that the structure of the micro-nano fiber is asymmetric in the lateral and longitudinal directions, thus improving its double-refraction effect; and realizes the high-efficiency polarizer with high birefringence, high extinction ratio, no damage to the fiber structure, no damage to the original transmission mode of light, wide working band, and easy integration. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the graphene micro-nano optical fiber polarizer (Drawing includes non-English language text).