| 均匀光纤Bragg光栅的慢光特性 |
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| 引用本文： | 侯尚林,尚云博,黎锁平,刘延君,雷景丽,徐永钊.均匀光纤Bragg光栅的慢光特性[J].兰州理工大学学报,2011,37(5):96-99. |
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| 作者姓名： | 侯尚林 尚云博 黎锁平 刘延君 雷景丽 徐永钊 |
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| 作者单位： | 1. 兰州理工大学理学院,甘肃兰州,730050
2. 东莞理工学院电子工程学院,广东东莞,523808 |
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| 基金项目： | 国家自然科学基金(61167005); 甘肃省自然科学基金(1010RJZA036); 广东省自然科学基金(10451170003004948) |
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| 摘 要： | 运用数值计算的方法研究了光栅长度、直流有效折射率的变化和调制深度对均匀光纤Bragg光栅群时延的影响,并重点分析它的慢光特性.结果表明:群时延的最大值随光栅长度、直流折射率的变化和调制深度的增大而不断增大,增大的幅度随参数的不同又有所不同,且得到140 ns的群时廷,而且光栅的群时延在光栅反射谱的下降沿随波长增加呈快速...
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| 关 键 词： | 均匀光纤Bragg光栅 耦合模理论 群时延 慢光 慢光器件 |
Slow-light characteristics of uniform fiber Bragg gratings |
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| HOU Shang-lin,SHANG Yun-bo,LI Suo-ping,LIU Yan-jun,LEI Jing-li,XU Yong-zhao.Slow-light characteristics of uniform fiber Bragg gratings[J].Journal of Lanzhou University of Technology,2011,37(5):96-99. |
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| Authors: | HOU Shang-lin SHANG Yun-bo LI Suo-ping LIU Yan-jun LEI Jing-li XU Yong-zhao |
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| Institution: | HOU Shang-lin1,SHANG Yun-bo1,LI Suo-ping1,LIU Yan-jun1 LEI Jing-li1,XU Yong-zhao2(1.School of Science,Lanzhou Univ.of Tech.,Lanzhou 730050,China,2.Institute of Electronic Engineering,Dongguan Univ.of Tech.,Dongguan 523808,China) |
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| Abstract: | The influence of grating length,dc effective refractivity,and modulation depth on group time delay of uniform fiber Bragg grating is investigated by using numerical method and its slow light characteristics are emphaticall yanalyzed.The results indicate that the maximum group time delay increases continuously with grating length,dc refractivity,and modulation depth and the extent of the increase varies differently with the difference of parameters.A group time delay of 140ns has been obtained,and the group ... |
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| Keywords: | uniform fiber Bragg grating coupled mode theory group time delay slow-light optical devices |
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