▎ 摘　　要

NOVELTY - The sensor comprises an optical fiber core (1), an optical fiber cladding (2), a fiber coating layer (3), and a large-angle tilt fiber Bragg grating (4). The coating of the middle and rear sections of the optical fiber is completely removed and the end face of the end of the rear section of the optical fiber is plated with a silver reflective film (9). The distance from the rear end of the large-angle tilt fiber Bragg grating to the silver reflection film at the end of the fiber is 30~60mm, and a fiber Michelson interference cavity is formed. The cladding surface of the fiber grating is tilted at a large angle to the end of the fiber. A silane layer (5) is formed on the cladding surface from the beginning to the end of the fiber. The nano gold shell particles (6) are fixed on the surface of silane layer, a graphene oxide layer (7) is adsorbed on the surface of nano gold shell particles layer, and a biomolecule sensitive layer (8) is fixed on the surface of graphene oxide layer. USE - Broadband interference ionophore biomolecule sensor of graphene oxide fiber grating used in biomedicine industry, life science, environmental monitoring. ADVANTAGE - The distance between the localized surface plasmon resonance (LSPR) and the biomolecule excited by the light wave evanescent place is increased by adopting the structure of the ionophore biomolecular sensor. The Broadband interference ionophore biomolecule sensor easily integrates, applies and is featured with high robustness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing a broadband interference ionophore biomolecule sensor with graphene oxide fiber grating. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the structure of a broadband interference ionophore biomolecule sensor of a graphene oxide fiber grating. Optical fiber core (1) Optical fiber cladding (2) Fiber coating layer (3) Large-angle tilt fiber Bragg grating (4) Silane layer (5) Nano gold shell particle (6) Graphene oxide layer (7) Biomolecule sensitive layer (8) Silver reflective film (9)