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| 温度不敏感偏振无关电光调制器设计 | |
| 引用本文： | 郑国梁,欧阳征标. 温度不敏感偏振无关电光调制器设计[J]. 应用光学, 2009, 30(6): 911-915 |
| 作者姓名： | 郑国梁 欧阳征标 |
| 作者单位： | 1.深圳大学电子科学与技术学院，广东深圳518060; 2.深圳市微纳光子信息技术重点实验室，广东深圳518060 |
| 基金项目： | 国家自然科学基金，广东省自然科学基金，深圳市科技计划，深圳大学博士启动基金 |
| 摘 要： | 利用LiNbO3晶体电光系数之间的关系，提出一种全新的温度不敏感偏振无关电光调制器。该调制器采用2块LiNbO3晶体紧密相贴的结构，2块晶体加同一横向电压，电极设计和制作相当简单，无偏振片，无偏振损耗。采用线性电光效应的耦合波理论对光在调制器中的传播进行研究，理论计算表明：光通过调制器后，其输出强度不依赖于入射光的偏振状态；另外，数值计算结果表明：当温度在-20℃到60℃之间变化时，调制器输出光强的扰动不超过1.5%。 |
| 关 键 词： | 电光调制器 偏振无关 温度稳定性 线性电光效应 耦合波理论 |
| 收稿时间： | 2009-06-11 |
Design of polarization-independent and temperature-in sensitive electro-optical modulator |
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| ZHENG Guo-liang,OUYANG Zheng-biao. Design of polarization-independent and temperature-in sensitive electro-optical modulator[J]. Journal of Applied Optics, 2009, 30(6): 911-915 | |
| Authors: | ZHENG Guo-liang OUYANG Zheng-biao |
| Affiliation: | 1. College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, China; 2. Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Shenzhen 518060, China |
| Abstract: | A new kind of polarization-independent and temperature-insensitive electro-optical modulator is presented by the aid of the relationship between the electro-optical coefficients of LiNbO3 crystal. The modulator is comprised of two pieces of LiNbO3 crystals, and a pair of collimators. The light propagation in the modulator is studied with the wave coupling theory of linear electro-optic effect. It demonstrates that the modulated output intensity doesn’t depend on the polarization of incident light. Furthermore, it shows that the disturbance of the output intensity is less than 1.5% as the temperature variation is -20℃～60℃, and dI0/dT is better than 0.0002, which means that the modulator has a wonderful thermal stability. |
| Keywords: | electro-optic modulator polarization independent temperature stability linear electro-optic effect wave coupling theory |
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