Abstract:Grating random fiber laser (RFL) provides feedback by writing some randomly distributed fiber Bragg gratings (FBGs) on the single mode fiber. However, because there are many grating pairs that satisfy the feedback condition, the mode competition is fierce, and the center frequency drift and multi-spike problems caused by gain competition are more serious. To alleviate the modes competition to a certain extent, we can reduce the spacing of FBGs and decrease the length of random structure. In this experiment, we… Show more
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