Er-doped fiber ring laser with fiber Bragg grating and all-fiber Mach-Zehnder interferometer

摘要

Abstract: We propose a novel structure of Er-doped fiber ring laser, in which a fiber Bragg grating and an all-fiber M-Z interferometer are used to select wavelength. Output laser with line-width narrower than 0.1 nm at 1.53 $mu@m waveband is obtained.!4