| 光子晶体光纤带隙及模场的一种综合模拟分析方法 |
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| 引用本文： | 张晓娟,赵建林.光子晶体光纤带隙及模场的一种综合模拟分析方法[J].海洋学报,2010,32(9):6299-6305. |
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| 作者姓名： | 张晓娟 赵建林 |
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| 作者单位： | 西北工业大学理学院,陕西省光信息技术重点实验室,教育部空间应用物理与化学重点实验室,西安 710072;西北工业大学理学院,陕西省光信息技术重点实验室,教育部空间应用物理与化学重点实验室,西安 710072 |
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| 摘 要： | 提出直接由MATLAB读入光纤端面图实现复杂结构光子晶体光纤(PCF)模型的快速建立,并综合平面波法(PWM)和频域有限差分(FDFD)法,模拟分析带隙型光子晶体光纤(PBG-PCF)的带隙和模场分布.利用PWM计算得到了在PBG-PCF中传输的光波频率及模式有效折射率范围;基于FDFD法在给定波长及模式有效折射率范围情况下,模拟得到了PBG-PCF中可能存在的模场分布及其他特性.以市售的PBG-PCF为例,验证了数值模拟的正确性,随后系统地分析了结构参数(晶格结构、"原子"占有率、背景材料折射率及"原子
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| 关 键 词： | 光子晶体光纤(PCF) 光子带隙(PBG) 平面波法(PWM) 频域有限差分法(FDFD) |
A synthetical simulation and analysis of band-gap and modal field of photonic crystal fiber |
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| Zhang Xiao-Juan and Zhao Jian-Lin.A synthetical simulation and analysis of band-gap and modal field of photonic crystal fiber[J].Acta Oceanologica Sinica (in Chinese),2010,32(9):6299-6305. |
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| Authors: | Zhang Xiao-Juan and Zhao Jian-Lin |
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| Institution: | Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, The Key Laboratory of Space Applied Physics and Chamistry, Ministry of Education, Xi' an 710072, China;Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, The Key Laboratory of Space Applied Physics and Chamistry, Ministry of Education, Xi' an 710072, China |
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| Abstract: | We present a method for quickly setting up the complex structure model of photonic crystal fiber (PCF) through directly reading the cross-section of photonic crystal fiber (PCF) by MATLAB, and numerically analyzing the band-gap and the modal field distribution in band-gap PCF (PBG-PCF) by combining plane wave method (PWM) with finite difference frequency domain (FDFD) method. Firstly, the frequency and modal effective index in PBG-PCF can be calculated by using PWM. Then, the modal field distribution and others properties of the PBG-PCF can be obtained in certain wavelength and index ranges by using the calculation results above and FDFD method. To validate its applicability, a type of commercial PBG-PCF was discussed and the influences of the structure parameters (crystal lattice structure, "atom" filling fraction, background material index and "atom" index) on the band-gap were systemically analyzed. This analytic method and calculation results may be useful for the design and preparation of the PCF with large band-gap. |
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| Keywords: | photonic crystal fiber (PCF) photonic band-gap (PBG) plane wave method (PWM) finite difference frequency domain (FDFD) |
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