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基于反共振反射光波导中的抑制耦合理论,本文设计和制备出一种单空气包层大纤芯的八边形空芯微结构光纤,光纤直径为170μm,纤芯直径为44μm,纤芯壁厚为1.2μm。实验测试结果表明该光纤对于波长为750nm的光具有良好的导光特性。该空芯光纤结构简单,容易制备,并可设计成大纤芯适用于光泵碱金属蒸气激光、液体填充传感、高功率近红外光能量传输及气体激光器等领域,为探索简易新型空芯微结构光纤打下前期实验基础。
Based on the theory of suppression coupling in anti-resonant reflective optical waveguide, an octagonal hollow-core microstructure fiber with single-core and single-core cladding was designed and fabricated. The fiber diameter was 170μm, the core diameter was 44μm, Thickness of 1.2μm. Experimental results show that the optical fiber has a good light guiding characteristic for light with a wavelength of 750 nm. The hollow core fiber is simple in structure, easy to prepare and can be designed into a large core suitable for light pumping alkali metal vapor laser, liquid filled sensing, high power near infrared light energy transmission and gas lasers and other fields. In order to explore the simple new hollow core Microstructured optical fiber lay the foundation of previous experiment.