| 题名: | Resolution improvement of grating spectrometer by using a tunable Fabry-Perot filter |
| 作者: | Fang, Liang; Shi, Zhendong; Qiu, Chuankai; Zhou, Chongxi
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| 出版日期: | 2015
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| 会议名称: | Proceedings of SPIE - The International Society for Optical Engineering
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| 会议日期: | 2015
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| 学科分类: | Inertial confinement fusion - Optical testing - Separation - Spectral resolution - Spectrographs - Spectrometers
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| DOI: | 10.1117/12.2202801
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| 中文摘要: | Aiming at the problem of the resolution reduction in a miniaturized grating spectrometer, we presented a method to improve its spectral resolution by inserting a tunable Fabry-Perot filter into its optical path before the grating. The Fabry-Perot filter was designed to filter out a partial spectrogram and separate the original undistinguishable spectral lines so as to make their actual wavelengths can be detected. The different cavity length of the Fabry-Perot filter is corresponding to the different separated partial spectrogram. Combining all the separated partial spectrograms, an entire spectrogram with improved resolution can be achieved. Experimentally, the spectral resolution of a grating dispersive system was improved from 2 nm to 1.2nm in a broad spectral range by insetting a homemade tunable Fabry-Perot filter, which demonstrated the feasibility of this scheme. The tunable Fabry-Perot filter is fit for miniaturization by using MEMS technology and is able to work as an independent module. The method proposed provides a potential way to improve the spectral resolution without reducing the spectral range of the existing miniaturized grating spectrometers. © 2015 SPIE. |
| 英文摘要: | Aiming at the problem of the resolution reduction in a miniaturized grating spectrometer, we presented a method to improve its spectral resolution by inserting a tunable Fabry-Perot filter into its optical path before the grating. The Fabry-Perot filter was designed to filter out a partial spectrogram and separate the original undistinguishable spectral lines so as to make their actual wavelengths can be detected. The different cavity length of the Fabry-Perot filter is corresponding to the different separated partial spectrogram. Combining all the separated partial spectrograms, an entire spectrogram with improved resolution can be achieved. Experimentally, the spectral resolution of a grating dispersive system was improved from 2 nm to 1.2nm in a broad spectral range by insetting a homemade tunable Fabry-Perot filter, which demonstrated the feasibility of this scheme. The tunable Fabry-Perot filter is fit for miniaturization by using MEMS technology and is able to work as an independent module. The method proposed provides a potential way to improve the spectral resolution without reducing the spectral range of the existing miniaturized grating spectrometers. © 2015 SPIE. |
| 收录类别: | SCI
; Ei
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| 语种: | 英语
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| 卷号: | 9677
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| ISSN号: | 0277-786X
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| 文章类型: | 会议论文
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| 页码: | 96771D
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| Citation statistics: |
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| 内容类型: | 会议论文
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| URI标识: | http://ir.ioe.ac.cn/handle/181551/7903
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| Appears in Collections: | 微细加工光学技术国家重点实验室（开放室）_会议论文
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| 2015-2172.pdf（465KB） | 会议论文 | -- | 限制开放 | | View
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作者单位: | State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O.box 350, Chengdu, China
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| Recommended Citation: | |
Fang, Liang,Shi, Zhendong,Qiu, Chuankai,et al. Resolution improvement of grating spectrometer by using a tunable Fabry-Perot filter[C]. 见:Proceedings of SPIE - The International Society for Optical Engineering. 2015.
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