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探索了新型聚合物传像光纤的制备方法。阐述了传像光纤中的光线传输理论及光纤设计理论,为传像光纤的研制提供理论指导。借助聚合物微结构光纤制作技术,在正六边形聚甲基丙烯酸甲酯(PMMA)微结构光纤预制棒的孔洞内填充高折射率的聚苯乙烯(PS)纤维,形成一次预制棒,热拉伸后熔并再拉伸,研制出直径为0.22mm,单丝直径为3μm的超高分辨率传像光纤。经过测试,该传像光纤可以分辨10μm的微刻度。探索用直径为0.25mm的特制PMMA芯/氟塑料包层光纤经过一步排列堆积制作传像光纤预制棒,拉伸制成直径为2mm,7200pixel,单丝直径为20μm的传像光纤。实验发现,吸附于光纤表面的灰尘对传像光纤的结构和图像质量有严重影响。
The preparation method of new polymer imaging optical fiber is explored. The theory of optical transmission in optical fiber and the theory of optical fiber design are expounded, which provides theoretical guidance for the development of optical fiber. With the help of polymer microstructure optical fiber fabrication technology, high refractive index polystyrene (PS) fibers are filled in the pores of regular hexagonal polymethylmethacrylate (PMMA) microstructured optical fiber preform to form a preform, Stretching and melting and then stretch, developed a diameter of 0.22mm, monofilament diameter of 3μm ultra-high resolution imaging fiber. After testing, the imaging fiber can be resolved 10μm micro-scale. A special PMMA core / fluoroplastics clad fiber with a diameter of 0.25mm was explored to form an image preform with a diameter of 2mm and a diameter of 7200pixel and a single fiber diameter of 20μm. The experiment found that the dust adsorbed on the surface of the optical fiber has a serious impact on the structure and image quality of the image fiber.