| 利用串联双滤波技术改善声光滤波器光谱分辨率的实验研究 |
| |
| 引用本文： | 王号,黄峻峰,张春光,高强. 利用串联双滤波技术改善声光滤波器光谱分辨率的实验研究[J]. 光电子．激光, 2015, 26(7): 1255-1259 |
| |
| 作者姓名： | 王号 黄峻峰 张春光 高强 |
| |
| 作者单位： | 福建师范大学 光电与信息工程学院,医学光电科学与技术教育部重点实验室,福建省光 子技术重点实验室,福建 福州 350007;福建师范大学 光电与信息工程学院,医学光电科学与技术教育部重点实验室,福建省光 子技术重点实验室,福建 福州 350007;福建师范大学 光电与信息工程学院,医学光电科学与技术教育部重点实验室,福建省光 子技术重点实验室,福建 福州 350007;福建师范大学 光电与信息工程学院,医学光电科学与技术教育部重点实验室,福建省光 子技术重点实验室,福建 福州 350007 |
| |
| 基金项目： | 国家自然科学基金(61107092)和福建师范大学青年骨干教师资助计划(fjsdjk2012055)资助 项目 (福建师范大学 光电与信息工程学院,医学光电科学与技术教育部重点实验室,福建省光 子技术重点实验室,福建 福州 350007) |
| |
| 摘 要： | 考虑旋光性设计 制作了两个非共线型声光可调滤波器(AOTF),通过前后放置对信号光进行两次的级联滤 波。 调节前后两个AOTF所加的超声频率值, 保证前后两个AOTF存在透射光谱的叠加区,从而实现光谱分辨率的提升及调控。实 验结果表明,双滤波技术还可以有效抑制AOTF透射光谱的旁瓣效应,改善透射光 谱的纯度。
|
| 关 键 词： | 声光可调滤波器(AOTF) 光谱分辨率 双滤波技术 |
| 收稿时间： | 2015-02-04 |
Experimental research on improving the spectral resolution of an acousto- optica l tunable filter by series double-filtering technique |
| |
| Affiliation: | Key Laboratory of Optoelectronic Science and Technology for Medicine of Minist ry of Education, Fujian Provincial Key Laboratory for Photonics Technology,College of Photonics and Electronic Engineering,Fujian Normal University,Fuzhou 350007,China;Key Laboratory of Optoelectronic Science and Technology for Medicine of Minist ry of Education, Fujian Provincial Key Laboratory for Photonics Technology,College of Photonics and Electronic Engineering,Fujian Normal University,Fuzhou 350007,China;Key Laboratory of Optoelectronic Science and Technology for Medicine of Minist ry of Education, Fujian Provincial Key Laboratory for Photonics Technology,College of Photonics and Electronic Engineering,Fujian Normal University,Fuzhou 350007,China;Key Laboratory of Optoelectronic Science and Technology for Medicine of Minist ry of Education, Fujian Provincial Key Laboratory for Photonics Technology,College of Photonics and Electronic Engineering,Fujian Normal University,Fuzhou 350007,China |
| |
| Abstract: | A tellurium dioxide (TeO2) non-collinear acousto-optic tunable filte r (AOTF) is a new kind of light splitting device based on abnormal acousto-optic interaction.Spectral resolutio n is one of the key parameters in the design and applications of an AOTF. In this paper,using the AOTFs designed considering the rotatory property o f the TeO2crystal,we experimentally investigate the double-filtering perform ance of the two AOTFs arranged in tandem.Adjusting the frequency of the radio frequency source,we can control and enhance the spectral resolution of the filtering system. In the experiment,a 25% enhancement of the spectral resolution has been acquired .Also,it is demonstrated that the double-filtering technique can suppress the sidelobe of the diffracted light be am.So the double-filtering technique is a good method in enhancing the filtering performance of an AOTF.And this tec hnique will promote the applications of an AOTF in hyperspectral imaging and oth er related fields. |
| |
| Keywords: | acousto-optic tunable filter (AOTF) spectral resolution double-filtering technique |
|
| 点击此处可从《光电子．激光》浏览原始摘要信息 |
|
点击此处可从《光电子．激光》下载全文 |
|
