▎ 摘　　要

NOVELTY - The system has an optical fiber circulator whose end is connected with an optical fiber isolator. Another end of the optical fiber circulator is connected with an optical fiber grating sensor and a spectrum analyzer. The optical fiber grating sensor is serially connected with two Bragg optical fiber gratings with different wavelengths. A gate region surface of the Bragg optical fiber grating is coated with ten graphene layers. An electrode is connected with a center part of the Bragg optical fiber grating. An electrode driver controls the electrode to discharge gate region central point of the Bragg optical fiber grating. The electrode driver adopts an optical fiber coating automatic stripping machine. USE - Electrode discharge and graphene coated optical fiber grating wavelength switch system. ADVANTAGE - The system selects the electrode driver to discharge the gate region of the Bragg optical fiber grating according to required wavelength range in an effective manner. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of an electrode discharge and graphene coated optical fiber grating wavelength switch system.