| 质子交换的新型集成光学TM通偏振器的研究 |
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| 引用本文： | 黄晖,胡鸿璋,刘锡久,薛挺,耿凡. 质子交换的新型集成光学TM通偏振器的研究[J]. 光学学报, 2000, 20(1): 78-82 |
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| 作者姓名： | 黄晖 胡鸿璋 刘锡久 薛挺 耿凡 |
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| 作者单位： | 1. 天津大学应用物理系,教育部光电子信息工程开放实验室,天津,300072
2. 航天工业总公司津航技术物理研究所,天津,300192 |
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| 基金项目： | 国家自然科学基金!(19674039) |
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| 摘 要： | 提出了用扩钛和质子交换相结合的方法在x-切,y-传的LiNbO3 衬底上制成TM 通集成光波导偏振器的新方案, 即在扩钛波导两侧的适当位置引入锯齿形的质子交换区。用二维BPM法分析了这类新型偏振器的消光特性, 给出了质子交换区几何形状以及质子交换区与扩钛波导之间的间隙对TE波消光比的影响, 给出了数值分析结果, 并得到了优于23 dB的实验结果
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| 关 键 词： | 集成光波导偏振器 质子交换 钛扩散 |
| 收稿时间： | 1998-07-13 |
Study on A Novel Integrated Optical Proton Exchanged TM-Pass Polarizers in LiNbO3 |
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| Huang Hui,Hu Hongzhang,Liu Xijiu,Xue Ting,Geng Fan. Study on A Novel Integrated Optical Proton Exchanged TM-Pass Polarizers in LiNbO3[J]. Acta Optica Sinica, 2000, 20(1): 78-82 |
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| Authors: | Huang Hui Hu Hongzhang Liu Xijiu Xue Ting Geng Fan |
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| Abstract: | A new method to fabricate TM pass polarizers by introducing zig zag shaped proton exchanged regions adjacent to a Ti diffusion waveguide on X cut, Y propagation lithium niobate is presented. A two dimension BPM (Beam Propagation Method) has been used to analyse this new kind of polarizer. The performance of the device is shown to depend strongly on the geometrical shapes of the proton exchange regions and their distances to channel waveguide. Through optimizing the parameters, a perfect device have been realized, and a TE extinction of 23 dB has been obtained experimentally. |
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| Keywords: | integrated optical polarizer proton exchange Ti diffusion. |
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