报道了利用自行拉制的具有大空气比、小纤芯的非均匀微结构光纤同纳焦耳量级的飞秒激光脉冲相互作用的试验研究。大空气比所带来的大折射率差能将传输的光场强烈地局域在纤芯中 ,大大增强了非线性效应 ,所以在 1～ 2cm的传输距离内 ,便有白光产生 ,传输 6 0cm后 ,输入的 2 4nm ,35fs飞秒脉冲就展宽成超过一个倍频程(Octave) ( 390～ 10 5 0nm)的超连续光谱 ,并且由于其包层具有非均匀分布的大小不等的空气孔 ,从而在传输过程中观察到由这种结构形成的非完全光子带隙影响下 ,侧向光泄露呈现颜色变化的新现象 The experimental study on the interaction of femtosecond laser pulses with self-drawn non-uniform microstructured fibers with large air ratio and small fiber core on the nanjoule scale was reported. Large air ratio caused by the large refractive index difference can be transmitted light field strongly localized in the core, greatly enhancing the nonlinear effect, so in the 1 ~ 2cm transmission distance, there will be white light, transmission 6 After 0 cm, the input 2 4 nm, 35 fs femtosecond pulse broadens into a supercontinuum that exceeds one octave (390 to 10 5 0 nm), and because its cladding has unevenly distributed air of varying sizes Hole, and thus observed in the transmission of this structure is formed by the incomplete photonic band gap under the influence of lateral light leakage showed a new phenomenon of color change