1.7 μm波段光纤光源在生物成像、激光医疗、特殊材料加工、有机物微量测量、中红外激光产生等领域有着巨大应用前景，已成为国内外的研究热点。总结了国内外1.7 μm光纤光源的研究进展，其研究内容主要包括：1.7 μm光纤光源技术的实现手段，国内外1.7 μm波段连续光纤激光器、脉冲激光器、宽带光源、放大器的研究情况及其相关应用。介绍了本课题组在1.7 μm波段光纤激光器及宽带光源的研究工作及取得的最新研究成果，展望了1.7 μm波段光纤光源的发展前景。

1.7 μm waveband fiber light source has great application prospects in the fields of biological imaging, laser medical treatment, special materials processing, organic matter micro-measurement，mid-infrared laser generation and so on, and has become a hot area of research both at home and abroad. The research progress of 1.7 μm fiber light source at home and abroad is summarized. The research mainly includes the technical means to achieve 1.7 μm fiber light source, and research situation of continuous fiber lasers, pulsed lasers, broadband light sources，and fiber amplifiers of 1.7 μm waveband. Its related applications are summarized as well. The work and latest advances of our research group on 1.7 μm waveband fiber lasers and broadband light sources are introduced. Future development of 1.7 μm waveband fiber light source is prospected as well.