提出了一种内嵌光纤Bragg光栅(FBG)对的Sagnac环结构双波长掺铒光纤(EDF)环形激光器。对内嵌FBG对的Sagnac环的滤波特性进行了理论分析,实验获得了输出波长分别为1 554.92nm和1 555.2nm的稳定双波长光纤激光,边模抑制比约为65dB,功率稳定性优于0.2dB,波长稳定性优于0.02nm。 A Sagnac ring dual-wavelength Erbium-doped fiber (EDF) ring laser with fiber Bragg grating (FBG) pairs embedded is proposed. The filter characteristics of the Sagnac ring with built-in FBG pairs are theoretically analyzed. The experimental results show that the stable mode of dual-wavelength fiber laser with output wavelengths of 1 554.92 nm and 1 555.2 nm, respectively, has a side mode suppression ratio of about 65 dB and better power stability 0.2dB, the wavelength stability is better than 0.02nm.