| LiNbO3:Fe晶体中光写入阵列平面光波导的实验实现 |
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| 引用本文： | 赵建林,李碧丽,杨德兴,张鹏,冯锡淇.LiNbO3:Fe晶体中光写入阵列平面光波导的实验实现[J].光子学报,2003,32(4):421-424. |
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| 作者姓名： | 赵建林 李碧丽 杨德兴 张鹏 冯锡淇 |
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| 作者单位： | [1]西北工业大学应用物理系光子学研究室，西安710072 [2]中国科学院上海硅酸盐研究所无机功能材料重点实验室，上海200050 |
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| 基金项目： | 国家自然科学基金资助项目(60077018) |
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| 摘 要： | 采用两束相干平行光形成的干涉光场辐照LiNbO3: Fe晶体,通过光折变效应在晶体中写入了阵列平面光波导.分别采用马赫-曾德干涉仪光路和光栅衍射法测量了阵列平面光波导的横向折射率分布和周期,并对所写入的阵列平面光波导进行了初步的导光测试.实验结果表明,用这种方法写入阵列平面光波导简便可行.
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| 关 键 词： | 光折变效应 LiNbO3:Fe晶体 阵列平面光波导 折射率分布 |
| 收稿时间： | 2002/10/23 |
| 修稿时间： | 2002年10月23 |
Experiment of Light Writing Planar Waveguides Array in LiNbO3∶ Fe Crystal |
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| Zhao Jianlin,Li Bili,Yang Dexing,Zhang Peng,Feng Xiqi.Experiment of Light Writing Planar Waveguides Array in LiNbO3∶ Fe Crystal[J].Acta Photonica Sinica,2003,32(4):421-424. |
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| Authors: | Zhao Jianlin Li Bili Yang Dexing Zhang Peng Feng Xiqi |
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| Institution: | 1. Department of Applied Physics, Norhwestern Polytechincal University, Xi′an 710072;
2. Laboratory of Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 |
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| Abstract: | Interference pattern formed by two collimated laser was used to illuminate LiNbO3:Fe crystal, then array of planar waveguides were formed in the crystal due to photorefractive effect. The transversal distributions of refractive index were measured by use of Mach-Zednher interference. Grating diffraction method was applied to measure the period of the array waveguides. And the guiding tests of array planar waveguides were performed. The results of experiments demonstrated that this method is easy and feasible for fabricating array planar waveguides. |
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| Keywords: | Photorefractive effect LiNbO3:Fe crystal Array of planar waveguides Refractive index distribution |
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