Nonuniformity Distortion Correction of Spatial Heterodyne Continuous Light

Runhao Wang; Yingru Sun; Yinlu Gan; Xingjiang Wu; Junjie Ke; Xinqiang Wang; Yongying Gan

doi:10.3788/LOP202259.1930002

Laser & Optoelectronics Progress, Volume. 59, Issue 19, 1930002(2022)

Nonuniformity Distortion Correction of Spatial Heterodyne Continuous Light

Runhao Wang¹, Yingru Sun¹, Yinlu Gan¹, Xingjiang Wu¹, Junjie Ke¹, Xinqiang Wang^1,2, and Yongying Gan^2,3、*

¹School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, Guangxi, China

²Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin 541004, Guangxi, China

³Teaching Practice Department, Guilin University of Electronic Technology, Guilin 541004, Guangxi, China

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Figures & Tables(7)

Fig. 1. Structure diagram of the spatial heterodyne spectrometer

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Fig. 2. Influence of nonuniformity distortion on interferogram. (a) Ideal interferogram; (b) interferogram with nonuniformity distortion

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Fig. 3. Interferogram and spectrum of one-dimensional water vapor. (a) Interferogram; (b) spectrogram

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Fig. 4. Nonuniform distortion function

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Fig. 5. Spectral standard deviation distribution before and after correction

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Fig. 6. Spectra before and after correction. (a) Distortion surface; (b) spectrum before correction; (c) spectrum after correction

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Table 1. Standard deviation before and after spectral correction
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Table 1. Standard deviation before and after spectral correction
No. No. 202 No. 330 No. 666
Standard deviation before spectral correction 0.06956 0.07360 0.04571
Standard deviation after spectral correction 0.00243 0.00181 0.00308

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Runhao Wang, Yingru Sun, Yinlu Gan, Xingjiang Wu, Junjie Ke, Xinqiang Wang, Yongying Gan. Nonuniformity Distortion Correction of Spatial Heterodyne Continuous Light[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1930002

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