| 高双折射光子晶体光纤研究 |
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| 引用本文： | 张明明,马秀荣,曹晔,岳洋,王力维.高双折射光子晶体光纤研究[J].光子学报,2008,37(6):1126-1129. |
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| 作者姓名： | 张明明 马秀荣 曹晔 岳洋 王力维 |
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| 作者单位： | 1. 天津理工大学,电子信息与通信工程学院,天津,300191;天津理工大学,薄膜电子与通信器件天津市重点实验室,天津,300191
2. 南开大学,光学所,天津,300071 |
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| 基金项目： | 教育部科学技术研究项目
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天津市自然科学基金
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天津市教委资助项目 |
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| 摘 要： | 设计了一种高双折射光子晶体光纤(Photonic Crystal Fiber,PCF),即增大两个与纤芯相邻的空气孔直径,使光纤只具有二重对称性,呈现出较高的双折射.通过压缩x轴方向孔间距,进一步增大双折射度.采用全矢量有限单元法(Finite-element Method,FEM),研究了该光子晶体光纤基模对应的相双折射和群双折射,给出了该高双折射PCF双折射随输入光波长的变化曲线.结果获得了10－3量级的高双折射.具有设计参量的该光子晶体光纤结构的相双折射在1 550 nm处可以达到5.0×10－3,在更长的波长处,这一值会更高.
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| 关 键 词： | 光纤通信 光子晶体光纤(PCF) 有限元法 高双折射 |
| 收稿时间： | 2007-06-14 |
| 修稿时间： | 2007-09-17 |
Study on High Birefringence Photonic Crystal Fiber |
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| ZHANG Ming-ming,MA Xiu-rong,CAO Ye,YUE Yang,WANG Li-wei.Study on High Birefringence Photonic Crystal Fiber[J].Acta Photonica Sinica,2008,37(6):1126-1129. |
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| Authors: | ZHANG Ming-ming MA Xiu-rong CAO Ye YUE Yang WANG Li-wei |
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| Abstract: | A kind of high birefringence photonic crystal fiber (PCF) was proposed.Enlarging two of the central air holes ,the fiber has twofold symmetry and appears the high birefringence.By squeezing the air hole lattice,the modal birefringence of such a PCF can be further enhanced.The phase and group birefringence of the fundamental mode in such a PCF are studied by using a full-vector finite-element method,and the curves showing the relation between the birefringence of this PCF and the wavelength of the input light are given.The high modal birefringence with magnitude of order of 10－3 has been obtained.The phase modal birefringence of such a PCF with the parameters calculated can reach 5.0×10－3 at 1 550 nm and even higher at longer wavelength. |
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| Keywords: | Fiber communication Photonic crystal fiber (PCF) Finite-element method High birefringence |
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