锁模和超短脉冲同步抽运是拉曼光纤激光器得到超短脉冲的主要方式。在锁模拉曼光纤激光器中,基于等效可饱和吸收体的结构可以实现较高性能的输出,但目前仍面临增益光纤过长带来的问题。超短脉冲同步抽运的方式可以有效解决这一问题,实现参数极佳的超快拉曼激光输出。超快拉曼光纤激光器发展潜力巨大,未来的研究将着眼于进一步提升各类超快拉曼光纤激光器的整体输出性能并探究其中的新现象。

Mode-locking and ultrashort pulse synchronous pumping are the main ways to obtain ultrashort pulses from Raman fiber lasers. In the mode-locked Raman fiber lasers, high performance output can be achieved in the structure with equivalent saturable absorbers, but the limitation caused by the long gain fiber remains. The method of synchronous pumping can overcome this problem effectively and achieve excellent ultrafast Raman laser output. There is a great potential for the ultrafast Raman fiber laser technology, and future research will focus on further improving the overall performance of various ultrafast Raman fiber lasers and investigating new phenomena observed in these laser systems.