提出一种基于双芯光纤滤波器和非线性偏振旋转效应(NPR)的多波长掺铒光纤激光器。使用双芯光纤构成紧凑型全光纤马赫-曾德尔(Mach-Zehnder)干涉仪型滤波器作为波长选择滤波器件,利用激光谐振腔中的非线性偏振旋转效应,通过调整光纤偏振控制器(PC),在室温下得到稳定的多波长激光输出。输出激光的工作波长左右漂移小于0.02nm,输出峰值功率波动小于0.4dB,具有良好的功率和波长稳定性。 A multi-wavelength erbium-doped fiber laser based on a two-core fiber filter and a nonlinear polarization rotation effect (NPR) is proposed. The use of a dual-core fiber to make a compact all-fiber Mach-Zehnder interferometer filter as a wavelength-selective filter utilizes the non-linear polarization rotation effect in the laser cavity by adjusting the fiber polarization controller (PC) , At room temperature to get a stable multi-wavelength laser output. The working laser output wavelength drift around less than 0.02nm, the output peak power fluctuations of less than 0.4dB, with good power and wavelength stability.