Spectral reducing of cross-dispersed echelle spectrograph and its wavelength calibration

TANG Yu-guo; CHEN Shao-jie; BAYANHESHIG; CUI Ji-cheng; CHEN Jin-yong

doi:10.3788/OPE.20101810.2130

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Spectral reducing of cross-dispersed echelle spectrograph and its wavelength calibration

Article | 更新时间：2020-08-12

- Spectral reducing of cross-dispersed echelle spectrograph and its wavelength calibration
- Optics and Precision Engineering Vol. 18, Issue 10, Pages: 2130-2136(2010)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101810.2130
  CLC： TH744.1
- Received：17 November 2009，
  
  Revised：11 December 2009，
  
  Published Online：28 October 2010，
  
  Published：20 October 2010
- 稿件说明：
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唐玉国, 陈少杰, 巴音贺希格, 崔继承, 陈今涌. 中阶梯光栅光谱仪的谱图还原与波长标定[J]. 光学精密工程, 2010,18(10): 2130-2136

TANG Yu-guo, CHEN Shao-jie, Bayanheshig, CUI Ji-cheng, CHEN Jin-yong. Spectral reducing of cross-dispersed echelle spectrograph and its wavelength calibration[J]. Editorial Office of Optics and Precision Engineering , 2010,18(10): 2130-2136
唐玉国, 陈少杰, 巴音贺希格, 崔继承, 陈今涌. 中阶梯光栅光谱仪的谱图还原与波长标定[J]. 光学精密工程, 2010,18(10): 2130-2136 DOI： 10.3788/OPE.20101810.2130.

TANG Yu-guo, CHEN Shao-jie, Bayanheshig, CUI Ji-cheng, CHEN Jin-yong. Spectral reducing of cross-dispersed echelle spectrograph and its wavelength calibration[J]. Editorial Office of Optics and Precision Engineering , 2010,18(10): 2130-2136 DOI： 10.3788/OPE.20101810.2130.

摘要

研究了与中阶梯光栅光谱仪相关的二维重叠光谱的实时还原与波长自动标定技术。基于分光系统主色散及横向色散规律及它们之间的相互关系

建立了3个变换矩阵 M

和 M

由此给出了中阶梯光栅光谱仪面阵CCD上所有接收点处空间坐标与波长关系的谱图矩阵 M

-XY

利用中心波长与自由光谱区特性获得了理想的无重叠谱图数据模型。提出了信号光斑识别方法

并对信号光斑位置坐标进行准确定位;结合所建立的谱图数据模型

实现了对二维重叠谱图的快速还原与标定。实验结果表明:该方法在中阶梯光栅光谱仪谱图分析中不仅实时性强

而且波长精度可达0.01 nm

满足中阶梯光栅光谱仪高分辨率、全谱瞬态直读等要求。

Abstract

The key technologies for cross-dispersed echelle spectrography

spectral reducing in real time and wavelength calibration

were researched.Based on the main dispersion

cross-dispersion and the relationship between them

the matrixes M

and M

were established

and then the cross-dispersed echelle spectral matrixe M

-XY

with the space coordinate on area CCD and the corresponding wavelength were given. By the characteristics of central wavelength and the free spectral range

the ideal data model without wavelength overlapping were obtained. A method to recognize the signal spots was proposed to locate the signal spot coordinate precisely. Using the data model without wavelength overlapping and the signal spot recognition

the two-dimensional overlapping echelle spectra were reduced and the wavelength was calibrated efficiently. By the result

this method is not only strong real-time in the echelle spectral analysis

but the wavelength accuracy is up to 0.01 nm. It can satisfy the requirements of echelle spectrograph for high resolutions

high precisions and rapid reading full spectra.

关键词

Keywords

references

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