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报道了一种双包层七芯光子晶体光纤,其零色散点在1036nm,在波长1060nm处非线性系数为2.43W-1·km-1。采用中心波长为1060nm、脉冲宽度为160ps、重复频率为1MHz、光束质量M2<1.3、最大输出功率为4.5W的增益开关皮秒脉冲全保偏光纤激光器抽运35m的七芯光子晶体光纤,得到最大输出功率为2.443W、谱宽范围500~1700nm的全光纤化超连续谱输出。实验所测的超连续谱输出远场与模拟的同相位超模远场分布非常吻合,故对高功率超连续谱产生具有参考价值。
A double-clad seven-core photonic crystal fiber with a zero-dispersion point of 1036 nm and a nonlinear coefficient of 2.43W-1 km-1 at a wavelength of 1060 nm has been reported. Polarization switched picosecond pulse Polarization-Defined Fiber Lasers with a center wavelength of 1060 nm, a pulse width of 160 ps, a repetition frequency of 1 MHz, a beam quality of M2 <1.3 and a maximum output power of 4.5 W were pumped through a 35 nm seven-core photonic crystal fiber The maximum output power of 2.443W, spectrum wide range of 500 ~ 1700nm all-fiber supercontinuum output. The far-field of the supercontinuum output measured by the experiment is in good agreement with the simulated far-field distribution of the same-phase supermodulus, so it has a reference value for the generation of high power supercontinuum.