▎ 摘　　要

NOVELTY - This utility new type provide a one fiber type grapheme Q-mode-locked laser, quality and a high nonlinearity and a mode-locked refers to laser technology field, to solve the problem with a difference of.. This utility new type include pump light source, optical glass mirror, a gain and saturation absorbing mirror, optical glass mirror by first, second, third, fourth convex, wherein, further comprise first dichroic mirror, a beam splitter and the polarization control element group, a pumping light source, a first, first dichroic mirror, second, gain fiber, third, a beam splitter, a polarization control element group, fourth plano-convex lens with the saturation absorbing mirror according to a order connecting in turn. This utility new type not only overcomes the high nonlinearity, and has simple structure, small volume, stability is better.