Abstract
In this paper, we experimentally investigate a single-longitudinal-mode (SLM) S-band erbiumdoped fiber (EDF) laser with dualring scheme using a S-band fiber Bragg grating (FBG) inside the gain cavity to restrict the lasing mode. The proposed laser is constructed by two-ring cavities serving as the mode filters. The FBG inside the proposed laser scheme can retrieve the SLM operation. Moreover, the output performance of the proposed fiber laser is also analyzed and discussed.
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