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空芯光纤纤芯内场强分布一直是研究热点,在某些限定条件下可通过光纤输出能量分布近似。提出了一种空芯传能光纤输出能量分布的简便测量方法,通过试验测量结果分析了输出能量分布在光纤模式纯度估算和光纤耦合状态检测两方面的应用,最后通过实验讨论了输出光束腰问题,对不同全内反射(ATR)空芯光纤所得结果进行了比较。
The distribution of the inner field intensity of the hollow core fiber core has been a research hotspot, and the energy distribution can be approximated by the optical fiber under certain limited conditions. A simple method to measure the energy distribution of air-core fiber transmission is proposed. The experimental results show that the output energy distribution can be used to estimate the fiber mode purity and fiber coupling state. Finally, the output beam waist Problem, the results of different total internal reflection (ATR) hollow-core optical fibers were compared.