| 高双折射的混合格子太赫兹光子晶体光纤的设计与研究 |
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| 引用本文： | 汪静丽,姚建铨,陈鹤鸣,邴丕彬,李忠洋,钟凯. 高双折射的混合格子太赫兹光子晶体光纤的设计与研究[J]. 物理学报, 2011, 60(10): 104219-104219. DOI: 10.7498/aps.60.104219 |
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| 作者姓名： | 汪静丽 姚建铨 陈鹤鸣 邴丕彬 李忠洋 钟凯 |
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| 作者单位： | 1. 天津大学激光与光电子研究所,精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津 300072;2. 南京邮电大学光电工程学院,光通信研究所,南京 210003 |
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| 基金项目： | 国家重点基础研究发展计划(批准号:2007CB310403)和南京邮电大学青蓝计划(批准号:NY207085)资助的课题. |
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| 摘 要： | 提出了一种新型高双折射的混合格子太赫兹光子晶体光纤,通过对芯区亚波长尺寸的空气孔进行多种格子组合排列,增加结构的非对称性实现高的模式双折射. 全文仿真建模采用专业的有限元计算软件COMSOL Multiphysics 4.0,结果表明:混合格子太赫兹光子晶体光纤在很宽的频率范围内都具有较高的双折射(达到10-2)和低的限制损耗,且通过改变光纤的某些参数可以灵活地控制其双折射或限制损耗特性. 相比于同类光通信波段光纤,由于太赫兹波波长较大,能够降低芯区微结构加工的难度,具有可行性.关键词：双折射混合格子太赫兹光子晶体光纤限制损耗
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| 关 键 词： | 双折射 混合格子 太赫兹光子晶体光纤 限制损耗 |
| 收稿时间： | 2010-10-17 |
Design and study of high birefringent terahertz photonic crystal fiber with hybrid crystal lattice |
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| Wang Jing-Li,Yao Jian-Quan,Chen He-Ming,Bing Pi-Bin,Li Zhong-Yang and Zhong Kai. Design and study of high birefringent terahertz photonic crystal fiber with hybrid crystal lattice[J]. Acta Physica Sinica, 2011, 60(10): 104219-104219. DOI: 10.7498/aps.60.104219 |
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| Authors: | Wang Jing-Li Yao Jian-Quan Chen He-Ming Bing Pi-Bin Li Zhong-Yang Zhong Kai |
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| Affiliation: | Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronic Engineering, Key Laboratory of Optoelectronic Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China;Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronic Engineering, Key Laboratory of Optoelectronic Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China;College of Optoe;College of Optoelectronic Engineering, Institute of Optical Communications, Nanjing University of Posts and Telecommunications, Nanjing 210003,China;Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronic Engineering, Key Laboratory of Optoelectronic Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China;Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronic Engineering, Key Laboratory of Optoelectronic Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China;Institute of Laser and Optoelectronics, College of Precision Instrument and Optoelectronic Engineering, Key Laboratory of Optoelectronic Information Science and Technology (Ministry of Education), Tianjin University, Tianjin 300072, China |
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| Abstract: | In this paper, we propose a novel high birefringent terahertz (THz) photonic crystal fiber (PCF) with subwavelength circular air hole pairs in the core which are arranged as a hybrid crystal lattice structure. And its high mode birefringence is realized by reducing structure symmetry in core. A professional software COMSOL Multiphysics 4.0 is used for modeling, and the simulation results show that this kind of THz PCF exhibits a high birefringence on a level of 10-2and low confinement loss over a wide THz frequency range. Moreover, the birefringence or confinement loss can be controlled flexibly by adjusting some fiber parameters. Compared with a similar structure PCF for the optical communication, the THz PCF is easier to practically fabricate, owing to its large wavelength size. |
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| Keywords: | birefringence hybrid crystal lattice THz PCF confinement loss |
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