A VIPA spectrograph with ultra-high spectral resolution, ultra-high wavelength calibration accuracy and wide spectral range

被引:0
|
作者
Zhang, Zhongnan [1 ,2 ,3 ]
Wang, Yutao [1 ,2 ,3 ]
Zhu, Xiaoming [1 ,2 ]
Lin, Dong [1 ,2 ,3 ]
He, Jinping [1 ,2 ,4 ]
机构
[1] Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Lab Solar & Space Instruments, Nanjing 210042, Peoples R China
[2] Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, CAS Key Lab Astron Opt & Technol, Nanjing 210042, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] Univ Chinese Acad Sci, Nanjing 211135, Peoples R China
基金
中国国家自然科学基金;
关键词
VIPA spectrograph; wide spectral range; ultra-high resolution; ultra-high accuracy; calibration method; IMAGED PHASED-ARRAY; COMB SPECTROSCOPY; SPECTROMETER; DISPERSION;
D O I
10.1088/2040-8986/ad8c60
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Spectrographs with ultra-high spectral resolution, ultra-high wavelength calibration accuracy, and wide spectral range hold immense potential in broad scientific frontiers, such as precise spectral measurement, femtosecond pulse shaping, and spectral beam combining, etc. In this paper, we have constructed a virtually imaged phased array (VIPA) based spectrograph, leveraging a laser frequency comb for precise wavelength calibration. The calibration methods specifically for the broadband VIPA spectrograph are presented. The spectrograph achieves a resolution exceeding 650000, a wavelength calibration accuracy better than 0.05 pm, and a remarkable bandwidth of over 110 nm. Spectral measurements are conducted with the spectrograph, and the results validate the performance.
引用
收藏
页数:9
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