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报道了利用飞秒脉冲激光与非均匀微结构光纤相互作用中产生超连续光谱后在非均匀微结构光纤传输中双折射拍频现象的研究 .利用 35fs的飞秒激光脉冲在高双折射微结构光纤中的传输过程中直接观察到了拍频现象 .并利用有限元方法对该光纤进行了模拟计算分析 ,计算得出在 6 0 0nm处拍频长度为毫米量级 .所得结果与实验一致
The birefringence beat-frequency phenomenon in the transmission of non-uniform microstructured optical fiber after supercontinuum generation in the interaction between femtosecond pulsed laser and non-uniform microstructured fiber is reported.Using the 35fs femtosecond laser pulse in the high birefringence microstructure The beat frequency was directly observed during the transmission in the fiber, and the finite element method was used to simulate the calculation of the optical fiber, and the beat length was calculated to be on the order of millimeters at 600nm.The results obtained are consistent with the experiment