近年来中红外超快锁模激光器发展极为迅速,有效地推动了中红外超快激光在中红外频率梳和分子光谱学、材料加工和激光手术、分子生物和化学等领域的应用。从近年来中红外超快光纤激光器的进展开始,介绍了该波段各类光纤激光的进展,并分析了如何从动力学调控上实现更窄脉宽、更远波长的技术方案;系统介绍了中红外光纤放大器中啁啾脉冲放大和非线性放大技术。综合来看,中红外超快光纤激光器正处在高速发展阶段,未来具有极高的应用价值。

In the past decade, mid-infrared ultrafast mode-locked lasers have made significant progress, effectively promoting their applications in many fields, including mid-infrared frequency combs, molecular spectroscopy, material processing, laser surgery, molecular organism, and chemistry. Herein, starting with the progress of mid-infrared ultrafast fiber lasers in recent years, we introduced the development of various optical fiber lasers in this band and discussed femtosecond fiber laser solutions achieving shorter pulse widths and farther wavelengths. Further, we introduced chirped pulse amplification and nonlinear amplification. Thus, mid-infrared ultrafast fiber lasers are in the high-speed development stage and will have abundant applications in the future.