OPTICAL FIBER CORE MODE REMOVER AND FABRICATING METHOD THEREOF

摘要

PURPOSE: An optical fiber core mode remover and a fabricating method thereof are provided to interfere the light of a core mode by connecting a core mode remover between the first long period fiber grating and the second long period fiber grating. CONSTITUTION: An optical fiber core mode remover includes the first long period fiber grating(1), a core mode remover(2), and the second long period fiber grating(3). The first long period fiber grating(1) is used for coupling a core mode to a cladding mode. The core mode remover(2) is used for removing light not being coupled in the remaining core mode from the first long period fiber grating(1) after the core mode is coupled to the cladding mode by the first long period fiber grating(1). The second long period fiber grating(3) is used for coupling the cladding mode of the first long period fiber grating(1) to the core mode.