| 一种光纤光栅啁啾度调谐的新方法 |
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| 引用本文： | 杨东周.一种光纤光栅啁啾度调谐的新方法[J].光电子．激光,2009(11):1438-1441. |
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| 作者姓名： | 杨东周 |
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| 作者单位： | 山东大学信息科学与工程学院;山东省半导体光电子工程技术研究中心;山东大学控制科学与工程学院; |
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| 基金项目： | 山东省自然科学基金资助项目(Q2007G03); 山东省优秀中青年科学家奖励基金资助项目(2006BS01001) |
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| 摘 要： | 提出了一种基于两端固定压杆的光纤光栅(FBG)啁啾度调谐的新方法,在FBG中引入线性应变,实现中心波长无移动啁啾度调谐。结合材料力学分析了FBG啁啾度调谐的原理,仿真分析了啁啾度调谐过程中的光栅反射谱和时延特性。带宽展宽调谐的实验实现了啁啾光纤光栅(CFBG)的带宽从6.52nm增加到12.78nm;而带宽压缩调谐实现了CFBG的带宽从6.57nm压缩到0.95nm。该啁啾度调谐方法在CFBG动态色散补偿以及利用CFBG的带宽信息实现温度无补偿的压力、位移等物理量的传感有着重要应用。
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| 关 键 词： | 光纤光栅(FBG) 啁啾度调谐 色散补偿 两端固定压杆 |
A novel method for tuning chirp ratio of fiber gratings |
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| YANG Dong-zhou.A novel method for tuning chirp ratio of fiber gratings[J].Journal of Optoelectronics·laser,2009(11):1438-1441. |
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| Authors: | YANG Dong-zhou |
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| Affiliation: | YANG Dong-zhou1,FENG De-jun1,3,WANG Jing2,JIANG Ming-shun2,SUI Qing-mei2(1.School of Information Science , Engineering,Sh,ong University,Jinan 250100,China,2.School of Control Science , Engineering,Jinan 250061,3.Semiconductor Optoelectronics Engineering Technology Center of Sh,ong Province,China) |
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| Abstract: | A novel method to tune the chirp ratio of fiber grating without the central wavelength shift is proposed using a two-fixed-end compressive bar which induces a linear strain distribution along the grating.The chirp ratio tuning principle is analyzed according to material mechanics,and the reflection and time delay characteristics of the grating during the tuning process are simulated as well.The bandwidth tuning range is from 6.52 nm to 12.78 nm when the grating is tuned in the broadening way,meanwhile,the b... |
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| Keywords: | fiber Bragg grating(FBG) chirp ratio tuning dispersion compensation two-fixed-end compressive bar |
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