| Y波导调制器残余强度调制研究 |
| |
| 引用本文： | 翁苍杰,杨德伟,郑远生,赵艳,姚天龙.Y波导调制器残余强度调制研究[J].应用光学,2017,38(6):974-978. |
| |
| 作者姓名： | 翁苍杰 杨德伟 郑远生 赵艳 姚天龙 |
| |
| 作者单位： | 1.北京航空航天大学 光电技术研究所，北京 100191 |
| |
| 基金项目： | 国家自然科学基金61575012国家自然科学基金61575013 |
| |
| 摘 要： | 为提高Y波导调制器调制性能从而提高光纤陀螺的整体性能，分析了用于光纤陀螺的Y波导相位调制器残余强度调制产生的机理，即存在波导缺陷以及基底杂散光反射；阐述了残余强度调制对光纤陀螺系统特性的影响，残余强度调制主要影响光纤陀螺的标度因素；测试了不同Y波导残余强度调制的波形特性和它的线性分量及干涉分量大小，不同Y波导残余强度调制大小差异较大，性能好的Y波导残余强度调制大小可以控制在1‰以内；测试了温度对残余强度调制波形特性的影响，残余强度调制受温度影响较大，极端温差下残余强度调制大小波动可达20%；根据残余强度调制的产生机理和线性干涉分量比的大小，提出改进Y波导制作工艺的措施，以期提高Y波导的调制性能。
|
| 关 键 词： | 光纤陀螺 Y波导调制器 残余强度调制 波形特性 |
| 收稿时间： | 2016-09-14 |
Residual intensity modulation of Y-waveguide modulator |
| |
| Affiliation: | 1.Institute of Opto-electronics Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China2.Beijing SWT Science & Technology Development Co., Ltd., Beijing 100738, China |
| |
| Abstract: | In order to improve modulation performance of Y waveguide modulator so as to improve the overall performance of fiber optical gyroscope(FOG), mechanism for residual intensity modulation (RIM) of Y-waveguide phase modulator used in FOG are analyzed, namely waveguide defects and substrate stray light reflection. Then the influence of RIM on characteristics of FOG system, and calibration factor of RIM influence mainly on FOG are described. Waveform characteristic of RIM of different Y-waveguide phase modulators and its value of linear components and interference are tested. Difference of RIM of different Y waveguide modulators is large. The value of RIM with good performance Y-waveguide modulator can be controlled within 1‰. Influences of temperature on waveform characteristic of RIM are tested. Fluctuations of RIM value can reach 20% under extreme temperature. Finally according to RIM mechanism and ratio of linear interference components, the measures for improving Y waveguide technology are put forward. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《应用光学》浏览原始摘要信息 |
|
点击此处可从《应用光学》下载全文 |
|
