| 新型光纤光栅中心波长与带宽独立调谐方法 |
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| 引用本文： | 张伟刚,开桂云,董孝义,袁树忠,赵启大.新型光纤光栅中心波长与带宽独立调谐方法[J].光学学报,2003,23(2):64-169. |
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| 作者姓名： | 张伟刚 开桂云 董孝义 袁树忠 赵启大 |
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| 作者单位： | 南开大学现代光学研究所,天津,300071 |
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| 基金项目： | 国家自然科学基金 ( 6 0 0 770 12 )，国家博士点基金，天津市科技攻关项目 ( 0 0 310 40 11)，天津市自然科学基金( 0 1380 0 5 11)，南开大学人事处科研启动基金资助课题。 |
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| 摘 要： | 提出了一种新型光纤光栅中心波长与带宽独立调谐方法，将光纤光栅沿圆柱形弹性梁的轴向成一定角度粘贴于侧面，通过改变梁的扭转角与侧向位移，实现了光纤布拉格光栅中心波长与带宽的准线性独立调谐，实验上获得了8．28nm准无啁啾波长调谐和5．32nm准无中心波长漂移的带宽调谐，实验结果与理论分析一致.
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| 关 键 词： | 光纤光栅 中心波长 光纤光学 光纤布拉格光栅 波长调谐 带宽调谐 弹性梁 光纤通信 光纤传感器 |
| 收稿时间： | 2001/12/30 |
A Novel Independent Tuning Method of Center Wavelength and Bandwidth of Fiber Grating |
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| Zhang Weigang Kai Guiyun,Dong Xiaoyi Yuan Shuzhong Zhao Qida.A Novel Independent Tuning Method of Center Wavelength and Bandwidth of Fiber Grating[J].Acta Optica Sinica,2003,23(2):64-169. |
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| Authors: | Zhang Weigang Kai Guiyun Dong Xiaoyi Yuan Shuzhong Zhao Qida |
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| Abstract: | A new independent tuning method of the center wavelength and the bandwidth of fiber grating is demonstrated. The fiber grating is bonded to the side surface of elastic beam with a determinate angle along its axis direction. The center wavelength and the bandwidth of the fiber grating can be quasi-linearly tuned respectively through changing the torsional angle and the lateral displacement. In the experiments, it is demonstrated the quasi-chirp-free wavelength tuning of 8.28 nm and the bandwidth tuning of 5.32 nm in which the center wavelength is quasi-shift-free. The experimental results are in good agreement with the theoretical analyses. |
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| Keywords: | optical fiber optics fiber Bragg grating wavelength tuning bandwidth tuning elastic beam |
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