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在利用多极法优化设计光子晶体光纤结构的基础上,充分结合挤压和堆积两种方法的优点,提出了基于挤压-堆积的新型硫系光子晶体光纤制备技术,利用As2S3硫系玻璃制备了三层孔环结构光子晶体光纤.通过理论模拟分析得出了该光纤的色散特性和零色散点,测试了1 550 nm近红外光纤激光在该光纤中的传输效果和纤芯光斑能量分布,利用该光斑测试验证了该光纤在近红外的光能传输局部限制能力和光子晶体的光学初步控制现象.
Based on the multipole method to optimize the design of photonic crystal fiber structure, a new type of sulfur-based photonic crystal fiber fabrication technology based on extrusion-deposition is proposed based on the advantages of both extrusion and stacking methods. As2S3 chalcogenide glass The three-layer hole-ring photonic crystal fiber is obtained.The dispersion characteristics and zero-dispersion of the fiber are obtained through theoretical simulation analysis, the transmission effect of the 1 550 nm near-infrared fiber laser in the fiber and the energy distribution of the core spot are tested, The spot test verifies the local limiting ability of the optical fiber in the near infrared light transmission and the optical preliminary control of the photonic crystal.