▎ 摘　　要

NOVELTY - The laser has first fiber laser cavity that is set to generate first wavelength laser. The first fiber laser cavity is optically coupled with the spatial light modulation cavity to form the first linear laser cavity. The second fiber laser cavity is set to generate the second wavelength laser. The second fiber laser cavity is optically coupled with the spatial light modulation cavity to form a second linear laser cavity. The spatial light modulation cavity is provided with a graphene electro-optic modulator, so that synchronous electro-optic modulation is performed on the first wavelength laser and the second wavelength laser. The first linear laser cavity is used as an oscillating laser cavity of first wavelength laser after electro-optic modulation. The second linear laser cavity is used as oscillating laser cavity of second wavelength laser after electro-optic modulation. USE - Graphene electro-optic modulation based dual-wavelength synchronous Q-switched fiber laser. ADVANTAGE - The Q-switched fiber laser realizes synchronous output of micro-second-order dual-wavelength pulse laser with adjustable repetition frequency and wide working bandwidth by coupling two fiber laser cavities with spatial light modulation cavity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene electro-optic modulation based dual-wavelength synchronous Q-switched fiber laser. Pumping source (1) Wavelength division multiplexer (2) Polarization controller (4) Output coupler (5) Optical fiber collimating lens (12)