Acta Photonica Sinica, Volume. 51, Issue 6, 0601001(2022)
Analysis of Influence of Doppler Asymmetric Spatial Heterodyne Interferogram Distortion on Phase Inversion Accuracy
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Fig. 2. The simulated red oxygen emission line（630.0 nm）interferogram with different distortion
Fig. 3. The Influence of different interferogram distortion on the phase retrieval of the red oxygen emission line（630.0 nm）
Fig. 4. The Influence of different interferogram distortion on the phase retrieval of the green oxygen emission line（557.7 nm）
Fig. 5. The influence of local bending on phase inversion of interferograms with different fringe frequencies
Fig. 6. The influence of the size and position of the local bending on phase inversion
Fig. 7. The influence of multi-line pixel combination of interferograms with different SNR and modulations on phase inversion
Table 1. DASH simulation parameters
View tableView in ArticleTable 1. DASH simulation parameters
Parameters Value Wavelengths 630.0 nm（red） 557.8 nm（green） Littrow wavelengths 630.318 1 nm 630.318 1 nm OPD offset 2.5 cm 2.5 cm Grating level 7 8 Grating inclination 8.2° 8.2° Grating density 64.285 lp/mm 64.285 lp/mm Prism top angle 6.28° 6.28° Detector resolution 800×800 800×800
Table 2. Interferogram distortion parameters
View tableView in ArticleTable 2. Interferogram distortion parameters
Type Coefficient and value Max offset/pixel Optical distortion k1 0~6.25×10-6 0~8 Local bending kc1 0~-3.58×10-4 0~8 kc2 0~0.108 Slanted fringes θ 0~1.15° 0~8 Frequency changed ks 0~0.02 0~8
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Guan ZHOU, Libo LI, Di FU, Yafei ZHANG, Yutao FENG, Changhai LIU. Analysis of Influence of Doppler Asymmetric Spatial Heterodyne Interferogram Distortion on Phase Inversion Accuracy[J]. Acta Photonica Sinica, 2022, 51(6): 0601001
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Received: Jan. 20, 2022
Accepted: Mar. 24, 2022
Published Online: Sep. 23, 2022
The Author Email: FENG Yutao (fytciom@126.com)
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