低损耗Topas环烯烃共聚物光纤研究

深圳大学深圳市激光工程重点实验室,先进光学精密制造技术广东普通高校重点实验室,深圳518060

微结构聚合物光纤; 连续太赫兹波; Topas 环烯烃共聚物光纤; 太赫兹传输; 太赫兹成像; 约束损耗

Research on the low-loss Topas cyclic olefin copolymer fiber
Liu Changrui, Xu Xintong, Zhang Yingying, Chen Lin, Zheng Wanjun, Yang Xi, Liang Huawei, and Ruan Shuangchen

Liu Changrui, Xu Xintong, Zhang Yingying, Chen Lin, Zheng Wanjun, Yang Xi, Liang Huawei, and Ruan ShuangchenShenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, Shenzhen University, Shenzhen 518060, P.R.China

microstructural polymer optical fiber; continuous wave terahertz; Topas cyclic olefin copolymer fiber; terahertz transmission; terahertz imaging; confinement loss

DOI: 10.3724/SP.J.1249.2014.02164

备注

以大直径空芯微结构Topas 环烯烃共聚物光纤为太赫兹波传输媒介,数值计算得其在1.89和2.52 THz处的限制损耗约为1.25和1.59 dB/m. 实验结果表明,该结构光纤能将1.89和2.52 THz的太赫兹波很好地限制在其空气芯中传输,存在较小的弯曲损耗,且1.89 THz处的约束损耗低于2.52 THz处,与计算结果吻合,并获得较好传输效果.

A large diameter hollow micro-structural Topas cyclic olefin copolymer(COC)fiber is selected for terahertz transmission. Numerical calculation of the confinement loss at 1.89 and 2.52 THz are about 1.25 and 1.59 dB/m, respectively. Experimental results show that this structural fiber can marvelously restrict 1.89 and 2.52 THz in the air inside of the fiber and exhibit relatively low bending loss. Furthermore, the fiber reveals better restriction property at 1.89 THz than that at 2.52 THz. In other words, the experimental results coincide with the result of theoretical calculation.

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