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2.5THz环烯烃聚合物中空芯光子晶体光纤设计与实验

陈琦,朱文静,何晓阳,孔德鹏,苗竟,罗振飞,周逊,杨春,张健

High Power Laser and Particle Beams（2015）

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Abstract
采用全矢量有限元法,仿真设计了一种工作在2.5THz频段的中空芯太赫兹光子晶体光纤,用环烯烃聚合物材料（COC）制备了光纤样品,利用CO2激光泵浦气体太赫兹源搭建了测试平台并对光纤的太赫兹波传输性能进行了测试。实测光纤最低损耗0.17dB/cm、平均损耗约0.5dB/cm,在弯曲90°情况下光纤传输损耗波动小于5%,具有良好的可弯曲性;光纤输出端口的模场分布测试结果表明,光纤是以主模进行传输,太赫兹能量很好地被束缚在光纤芯中。
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Key words
terahertz,photonic crystal fiber,cyclic olefin copolymer,hollow-core
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