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| 低损耗大模面积W型布喇格光纤 | |
| 引用本文： | 闫培光,赵健,郭春雨,赵俊清,舒杰,阮双琛,李相,陈胜平.低损耗大模面积W型布喇格光纤[J].光子学报,2014,40(2):174-177. |
| 作者姓名： | 闫培光 赵健 郭春雨 赵俊清 舒杰 阮双琛 李相 陈胜平 |
| 作者单位： | （1 深圳大学 电子科学与技术学院,广东 深圳 518060） （2 国防科学技术大学 光电科学与工程学院,长沙 410073） |
| 基金项目： | 国家自然科学基金（No.61007054,No.10904173）、深圳市科技计划项目（No.200718）和广东省自然科学基金（No.9451806001002428） |
| 摘 要： | 通过有限元法建立模型,讨论了布喇格光纤设计参量对光子带隙的影响,发现当增加掺锗玻璃环的厚度或折射率时,会使带隙移向长波.通过在紧邻纤芯处施加一层掺氟低折射率玻璃,设计了一种大模面积W型布喇格光纤.计算表明:W型布喇格光纤可以有效减小限制损耗,提高光纤的抗弯曲能力.本文设计的布喇格光纤的纤芯直径为30 μm,在波长1.06 μm限制损耗约为0.1 dB/km,且维持单一横模传输. |
| 关 键 词： | 布喇格光纤 大模面积 反共振反射型光波导 |
| 收稿时间： | 2010-09-13 |
Low-loss Large Mode Area Bragg Fiber with a W-shape Core |
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| YAN Pei-guang,ZHAO Jian,GUO Chun-yu,ZHAO Jun-qing,SHU Jie,RUAN Shuang-chen.Low-loss Large Mode Area Bragg Fiber with a W-shape Core[J].Acta Photonica Sinica,2014,40(2):174-177. | |
| Authors: | YAN Pei-guang ZHAO Jian GUO Chun-yu ZHAO Jun-qing SHU Jie RUAN Shuang-chen |
| Institution: | (1 College of Electronic Science and Technology,Shenzhen University,Shenzhen,Guangdong 518060,China) (2 College of Optoelectric Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
| Abstract: | The influence of Bragg fiber design parameters on photonic bandgap was discussed via the finite element method.The theoretical results show that the bandgap move to long wavelength when the thickness or the refractive index of the Ge-doped layers increases.A novel W-shape-core Bragg fiber was firstly proposed by introducing a F-doped low index layer adjacent of fiber core.The calculation demonstrates the W-shape-core Bragg fiber can reduce the confinement loss and improve the bending-resistant ability effectively.A W-shape-core Bragg fiber was designed with a core diameter of 30 μm,which has a loss of 0.1 dB/km at wavelength of 1.06 μm and is proved single mode propagation theoretically. |
| Keywords: | Bragg Fiber(BF) Large mode area Anti-Resonance Reflecting Optical Waveguide(ARROW) |
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