| 一种简单的光纤光栅电调谐方法 |
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| 引用本文： | 杨石泉,蒙红云,董新永,武志刚,项阳,董孝义.一种简单的光纤光栅电调谐方法[J].光子学报,2002,31(7):907-910. |
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| 作者姓名： | 杨石泉 蒙红云 董新永 武志刚 项阳 董孝义 |
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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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| 摘 要： | 采用较简单的双点源真空蒸发法在光栅外表面上蒸镀一层均匀铝膜,利用电流流过铝膜时产生的电阻热改变光栅的温度而使光栅的中心波长向长波方向发生改变.光栅中心波长的变化与所加电流的平方成正比.实验中用较小的电流(约43mA)获得了较大的波长调谐范围(约4nm),其调谐精度达到2.15×10-3nm/(mA)2.
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| 关 键 词： | 光纤光栅 电流 波长调协 薄膜 |
| 收稿时间： | 2001/4/16 |
| 修稿时间： | 2001年4月16日 |
A SIMPLE METHOD FOR FBG WAVELENGTH TUNING BY CURRENT |
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| Yang Shiquan,Meng Hongyun,Dong Xinyong,Wu Zhigang,Xing Yang,Dong XiaoyiInstitute of Modern Optics,Nankai University,Tianjin.A SIMPLE METHOD FOR FBG WAVELENGTH TUNING BY CURRENT[J].Acta Photonica Sinica,2002,31(7):907-910. |
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| Authors: | Yang Shiquan Meng Hongyun Dong Xinyong Wu Zhigang Xing Yang Dong XiaoyiInstitute of Modern Optics Nankai University Tianjin |
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| Institution: | Yang Shiquan,Meng Hongyun,Dong Xinyong,Wu Zhigang,Xing Yang,Dong XiaoyiInstitute of Modern Optics,Nankai University,Tianjin 300071 |
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| Abstract: | A simple method for FBG wavelength tuning by electric currents is proposed.A uniform coat of aluminium thin film is deposited on an FBG by vacuum evaporation with two sources.The Bragg wavelength of the fiber grating will shift when the current flowing through the film varies because of the Joule heat generated by the current.The relationship between the square of the current intersity and the wavelength detuning is basically linear.In the experiment,we got about 4nm detuning range of FBG wavelength by using current intersity of ～43mA and got a sensitivith of ～2.15×10-3nm/(mA)2. |
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| Keywords: | Fiber Bragg grating(FBG) Electric current Wavelenth tuning Thin film |
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