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题名:
Resolution improvement of grating spectrometer by using a tunable Fabry-Perot filter
作者: Fang, Liang; Shi, Zhendong; Qiu, Chuankai; Zhou, Chongxi
出版日期: 2015
会议名称: Proceedings of SPIE - The International Society for Optical Engineering
会议日期: 2015
学科分类: Inertial confinement fusion - Optical testing - Separation - Spectral resolution - Spectrographs - Spectrometers
DOI: 10.1117/12.2202801
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
语种: 英语
卷号: 9677
ISSN号: 0277-786X
文章类型: 会议论文
页码: 96771D
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7903
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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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

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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