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兰州理工大学 理学院,甘肃 兰州,730050
纸质出版日期:2016-7-5,
收稿日期:2016-1-25,
修回日期:2016-3-10,
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胡守重, 侯尚林, 刘延君等. 双包层太赫兹光子晶体光纤的传输特性[J]. 发光学报, 2016,37(7): 845-851
HU Shou-zhong, HOU Shang-lin, LIU Yan-jun etc. Propagation Characteristics of Terahertz Wave Double-cladding Photonic Crystal Fiber[J]. Chinese Journal of Luminescence, 2016,37(7): 845-851
胡守重, 侯尚林, 刘延君等. 双包层太赫兹光子晶体光纤的传输特性[J]. 发光学报, 2016,37(7): 845-851 DOI: 10.3788/fgxb20163707.0845.
HU Shou-zhong, HOU Shang-lin, LIU Yan-jun etc. Propagation Characteristics of Terahertz Wave Double-cladding Photonic Crystal Fiber[J]. Chinese Journal of Luminescence, 2016,37(7): 845-851 DOI: 10.3788/fgxb20163707.0845.
为了在太赫兹波段实现远距离宽频带传输
设计了一种具有低吸收损耗的环烯烃共聚物(COC)作为基底材料双包层太赫兹光子晶体光纤。利用全矢量有限元法及模式选择理论
数值模拟了该光纤的单模传输范围、限制损耗、色散以及有效模场面积等特性。结果表明:优化结构参数可使在1~10 THz范围内基模限制损耗小于0.1 dB/m
二阶模限制损耗大于1 dB/m。因此可以获得1~10 THz的宽频带单模传输并且在1.5~10 THz内群速度色散可以控制在0.1 ps/(THzcm)。
In order to realize long distance and broadband transmission of terahertz wave
a double-cladding terahertz photonic crystal fiber was designed based on Topas cyclic olefin copolymer with low loss. The single-mode transmission range
confinement loss
dispersion and effective area of the double-cladding terahertz photonic crystal fiber were investigated by using the full-vector finite element method (FEM) and the mode choice theory. The results show that the confinement loss of the fundamental mode is far less than 0.1 dB/m and the confinement loss of second-order mode loss is larger than 1 dB/m at frequency range of 1-10 THz by tailoring the structure parameters. The broadband single mode transmission operates at bandwidth of 1-10 THz
and the group velocity dispersion (GVD) can be controlled at 0.1 ps/(THzcm) in the range of 1.5-10 THz.
太赫兹波光子晶体光纤单模传输损耗色散
terahertzphotonic crystal fibersingle modeconfinement lossdispersion
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