飞秒脉冲光纤激光器是目前激光技术研究领域中最具活力的研究课题之一,其产生的飞秒脉冲可用于高速大容量波分复用(WDM)、时分复用(TDM)光纤通信系统和作为传感光源等,有着巨大的应用前景。掺杂光纤作为光纤激光器增益介质的研究始于20世纪60年代。自从20世纪80年代低损耗掺铒光纤研制成功以后,由于其在1.55μm附近的激 The femtosecond pulsed fiber laser is one of the most dynamic research topics in the field of laser technology. The femtosecond pulsed fiber laser can be used in high speed and large capacity wavelength division multiplexing (WDM), time division multiplexing (TDM) optical fiber communication system and As a sensor light source, has a huge application prospects. The study of doped fiber as gain medium of fiber laser began in the 1960s. Since the successful development of low-loss erbium-doped optical fiber in the 1980s, due to its excitation near 1.55μm