对半导体激光器进行调制得到了中心波长为1060.14 nm、谱宽为0.63 nm、重复频率为1.55 MHz、脉宽为11 ns的纳秒种子激光，进而对其进行三级主振荡功率放大（MOPA），实现了18.2 W高功率、高重复频率纳秒光纤激光器。利用此纳秒光纤激光器及自主研制的光纤模场适配器，抽运145 m锥形光子晶体光纤，实现了最大输出功率为2.2 W的全光纤化白光超连续谱光源，光谱范围为440~1700 nm，在整个光谱可探测范围内具有15 dB的光谱平坦度。

By modulating the laser diode, a nanosecond laser with center wavelength of 1064.14 nm, spectral width of 0.63 nm, repetition frequency of 1.55 MHz and pulse width of 11 ns is realized. This seed laser is then amplified to a high-power, high-repetition rate nanosecond fiber laser with an average output power of 18.2 W using a tri-stage master oscillator power amplifier (MOPA) configuration. This nanosecond fiber laser is used to pump a 145 m long tapered photonic crystal fiber with a self-made mode field adaptor (MFA), and a 2.2 W all-fiber white light supercontinuum source is realized with a 15 dB spectral flatness in the detected spectral range from 440 nm to 1700 nm. The spectral edge also corresponds well with the theoretical value.