| 新型光子晶体光纤近零平坦色散的研究 |
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| 引用本文： | 廖兴展,徐旭明,林浩亮.新型光子晶体光纤近零平坦色散的研究[J].光通信研究,2008,34(3):22-24. |
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| 作者姓名： | 廖兴展 徐旭明 林浩亮 |
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| 作者单位： | 南昌大学物理系,江西,南昌,330031 |
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| 基金项目： | 江西省自然科学基金
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江西省教育厅资助项目
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江西省科技攻关项目 |
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| 摘 要： | 文章作者设计了一种新型的光子晶体光纤(PCF),在纤芯引入了一个小空气孔形成缺陷,并改变第一层空气孔的直径.采用平面波法研究了该PCF的色散特性,结果表明,该光纤能够得到比传统的PCF更低、更平坦的色散曲线;通过优化该光纤的结构参数,可以设计在1 350～2 010 nm波长范围内近于零的平坦色散PCF,其色散变化△D＜0.5 ps/(km·nm),在1 320～2 040 nm波长范围内色散斜率变化△D<,slope>＜0.02 ps/(km·nm<'2>).
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| 关 键 词： | 光子晶体光纤 平坦色散 色散斜率 平面波法 |
| 收稿时间： | 2007/12/6 |
Study on a novel photonic crystal fiber with near zero and flat dispersion |
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| Liao Xingzhan,Xu Xuming,Lin Haoliang.Study on a novel photonic crystal fiber with near zero and flat dispersion[J].Study on Optical Communications,2008,34(3):22-24. |
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| Authors: | Liao Xingzhan Xu Xuming Lin Haoliang |
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| Affiliation: | Liao Xingzhan,Xu Xuming,Lin Haoliang(Department of Physics,Nanchang University,Nanchang 330031,China) |
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| Abstract: | A novel Photonic Crystal Fiber (PCF) is designed, in which a small air hole is introduced in its core to form a defect and the diameter of the first ring of air holes is changed. Its dispersion properties are studied by adopting the plane wave method, which shows that it has lower and flatter dispersion curve than the traditional PCF. By optimizing its structural parameters, a PCF with near zero and flat dispersion in the wavelength range of 1 350～2 010 nm can be designed. Its dispersion variation ΔD＜0.5 ps/(km·nm) and dispersion slope variation ΔDslope＜0.02 ps/(km·nm2) in the wavelength range of 1 320~2 040 nm. |
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| Keywords: | PCF flat dispersion dispersion slope plane wave method |
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