| 一种高双折射低限制性损耗光子晶体光纤设计 |
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| 引用本文： | 赵丽娟,梁若愚,赵海英,徐志钮.一种高双折射低限制性损耗光子晶体光纤设计[J].光电工程,2021,48(3):83-90. |
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| 作者姓名： | 赵丽娟 梁若愚 赵海英 徐志钮 |
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| 作者单位： | 华北电力大学电气与电子工程学院,河北 保定 071003;华北电力大学河北省电力物联网技术重点实验室,河北 保定 071003;华北电力大学保定市光纤传感与光通信技术重点实验室,河北 保定 071003;华北电力大学电气与电子工程学院,河北 保定 071003 |
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| 基金项目： | 国家自然科学基金资助项目(51607066,61775057);河北省自然科学基金资助项目(E2019502177);中央高校基本科研业务费专项资金项目(2019MS085)。 |
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| 摘 要： | 本文设计了一种适用于长距离光纤通信的新型光子晶体光纤。该光纤包层内椭圆形和圆形空气孔呈交错排列,纤芯两侧为两个小椭圆空气孔。利用有限元分析方法对所设计光纤的传输特性进行分析并对其结构进行了优化,确定了最佳结构。结果表明,波长为1550 nm时,此新型光子晶体光纤在最佳结构下可提供高达3.51×10-2的高双折射和低至1.5×10-9 dB/m的限制性损耗。与现存的引入椭圆形空气孔的光子晶体光纤相比,本文中的光子晶体光纤的双折射系数有较大提高,限制性损耗系数降低了5个数量级。另外,本文还详细研究了光子晶体光纤的色散随光子晶体光纤结构的变化以及其布里渊增益特性,并分析了其可制造性。基于其高双折射和低限制性损耗特性,此种光纤可应用于长距离光纤通信系统。
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| 关 键 词： | 光子晶体光纤 高双折射 低限制性损耗 有限元分析法 |
Design of a photonic crystal fiber with low confinement loss and high birefringence |
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| Zhao Lijuan,Liang Ruoyu,Zhao Haiying,Xu Zhiniu.Design of a photonic crystal fiber with low confinement loss and high birefringence[J].Opto-Electronic Engineering,2021,48(3):83-90. |
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| Authors: | Zhao Lijuan Liang Ruoyu Zhao Haiying Xu Zhiniu |
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| Affiliation: | (School of Electrical and Electronic Engineering,North China Electric Power University,Baoding,Hebei 071003,China;Hebei Key Laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding,Hebei 071003,China;Baoding Key Laboratory of Optical Fiber Sensing and Optical Communication Technology,North China Electric Power University,Baoding,Hebei 071003,China) |
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| Abstract: | A photonic crystal fiber(PCF)for long distance communication was proposed in this paper.The circular and elliptical air holes distribute in the cladding,and there are two small elliptical air holes around the core in cross section of the PCF.The characteristics of the PCF were analyzed by using the finite element method(FEM)systematically.The results show that the PCF offers an ultrahigh birefringence of 3.51×10-2 and the confinement loss as low as 1.5×10-9 dB/m with the optimal structure at the wavelength of 1550 nm.Compared with the existing photonic crystal fibers with elliptical air holes,the birefringence has a large increase,and the confinement loss reduces by 5 orders of magnitude.Additionally,we also analyzed the relationship between the dispersion of the PCF and the wavelength,and obtained the Brillouin gain spectrum characteristics.In general,the PCF can be used in long distance communication system. |
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| Keywords: | photonic crystal fiber high birefringence low confinement loss finite element method |
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