单频光纤激光器在激光**、激光雷达、空间激光通信、相干光通信、高精度光谱测量、引力波探测等领域有着广泛的应用前景,受到了研究者的极大关注。从1.0,1.5,2.0 μm三种典型工作波段进行归类,综述了单频光纤激光器的国内外研究现状,内容涵盖了单频光纤激光产生、噪声抑制、线宽压窄、连续与脉冲单频激光放大等技术。此外,结合了本课题组在单频光纤激光器方面的研究工作,着重介绍了基于单振荡器和主振荡功率放大器结构的单频光纤激光器近年来的研究进展,并展望了单频光纤激光器的未来发展方向。

Single-frequency fiber lasers (SFFLs) have been widely applied in the fields of laser weapons, laser lidar, laser space communication, coherent optical communication, high-precision spectral measurement, and gravitational wave detection. In this paper, the research progress of SFFLs at home and abroad is reviewed on the three typical working wavelength bands of 1.0, 1.5, and 2.0 μm. The content includes the SFFL generation, noise suppression, linewidth compression, continuous and pulsed single-frequency laser amplification, and other technologies. In addition, combining with our research on SFFLs, we focus on the recent progress of SFFLs based on the single oscillator and main oscillation power amplifier, and prospect the future development of SFFLs.