title: Wavelength-tunable, passively mode-locked fiber laser based on graphene and chirped fiber Bragg grating.
abstract: We demonstrate a wavelength-tunable, passively mode-locked erbium-doped fiber laser based on graphene and chirped fiber Bragg grating. The saturable absorber used to enable passive mode-locking in the fiber laser is a section of microfiber covered by graphene film, which allows light-graphene interaction via the evanescent field of the microfiber. The wavelength of the laser can be continuously tuned by adjusting the chirped fiber Bragg grating, while maintaining mode-locking stability. Such a system has high potential in tuning the mode-locked laser pulses across a wide wavelength range.
authors: Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, China.
authors: Xiaoying
authors: X
authors: He
authors: Zhi-bo
authors: ZB
authors: Liu
authors: D N
authors: DN
authors: Wang
mesh_terms: D006108:Graphite; D007834:Lasers; D055100:Optical Fibers
chemical_list: D006108:Graphite