采用自行搭建的被动锁模皮秒脉冲掺镱光纤激光器作为抽运源，将其输出尾纤与国产光子晶体光纤（PCF）进行低损耗熔接，构成全光纤结构的高功率超连续谱(SC)光源。全光纤结构提高了超连续谱产生系统的稳定性和转换效率。实验观察了皮秒脉冲在正常色散区抽运光子晶体光纤产生超连续谱过程，并对超连续谱的产生机理进行了理论解释。该光源输出平均功率为4.6 W的超连续谱，超连续光谱展宽超过1000 nm，光光转换效率为54%。

A highpower allfiber supercontinuum（SC） source is demonstrated by splicing a picosecond fiber laser with a homemade photonic crystal fiber（PCF）. The allfiber configuration enhanced the stability and conversion efficiency of the system. The supercontinuum excitated by picosecond pulses in the normal dispersive regime is studied. The supercontinuum broadening process is explained theoretically. The ultimate supercontinuum spans over 1000 nm with an average power up to 4.6 W and a conversion lightlight transfer efficiency of 54%.