We provide a perspective review over the recent development of short-pulsed Raman fiber lasers (RFLs), which can provide laser emissions with flexible wavelengths for a variety of applications as well as an excellent platform to investigate various nonlinear pulse dynamics behaviors that cannot be captured in conventional rare-earth (RE) doped counterparts. Various pulse generation techniques have been explored in RFLs. However, the output pulse performance in terms of the pulse energy, duration and stability from short-pulsed RFLs is still inferior to their RE-doped counterparts despite significant advances made over the past few decades. Therefore, more efforts are required to improve these targets. In this review, we present a detailed overview of the short-pulsed RFLs based on different mechanisms from the principle to the experiment, including the Q-switching, gain-switching, mode-locking, synchronous pumping and other innovative techniques. In addition, Raman-induced pulse dynamics in ultrafast RFLs and RE-doped mode-locked fiber lasers (MLFLs) are briefly reviewed. Finally, a perspective outlook for the future ultrafast RFLs is provided based on their potential applications in industrial and scientific research areas.

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短脉冲拉曼光纤激光器及其动力学

我们提供了有关短脉冲拉曼光纤激光器（RFL）的最新发展的观点综述，该短脉冲拉曼光纤激光器可以为各种应用提供具有灵活波长的激光发射，并提供了一个出色的平台来研究无法捕获的各种非线性脉冲动力学行为在常规稀土（RE）掺杂的对应物中。在RFL中已经探索了各种脉冲生成技术。然而，尽管在过去几十年取得了长足的进步，但从短脉冲RFL的脉冲能量，持续时间和稳定性方面的输出脉冲性能仍不如掺RE的同类产品。因此，需要更多的努力来改善这些目标。在这篇评论中，我们将根据原理和实验的不同机制，对短脉冲RFL进行详细概述，包括Q开关，增益开关，锁模，同步泵浦和其他创新技术。此外，简要回顾了超快RFL和RE掺杂锁模光纤激光器（MLFL）中拉曼引起的脉冲动力学。最后，根据其在工业和科研领域的潜在应用，提供了对未来超快RFL的展望。