Acta Physica Sinica, Volume. 69, Issue 1, 014202-1(2020)

A propagation of interferogram signal-to-noise (SNR) and phase uncertainty in Doppler asymmetric spatial heterodyne spectrometer

Chen Sun1,2, Yu-Tao Feng1、*, Di Fu1, Ya-Fei Zhang1,2, Juan Li1, and Xue-Bin Liu1
Author Affiliations
  • 1Key Laboratory of Spectral Imaging Technology, Xi’an Institute of Optics and Precision Mechanics, CAS, Xi’an 710119, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(10)
    Schematic of the Doppler asymmetric spatial heterodyne interferometer.多普勒差分干涉仪原理图
    Flow chart of phase retrieval method.相位反演模型流程图
    Simulation results of retrieved phase uncertainty and residual with different SNR: (a) Phase uncertainty of two models; (b) the differences between two results.信噪比与相位不确定度仿真结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
    Photograph of laboratory setup.实验平台
    Interferogram.原始干涉图
    Experimental results of retrieved phase uncertainty and residual with same attenuation coefficient and different integration time: (a) Phase uncertainty of two models; (b) the differences between two results.变积分时间实测数据计算结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
    Experimental results of retrieved phase uncertainty and residual with different attenuation coefficients: (a) Phase uncertainty of two models; (b) the differences between two results变衰减片实测数据计算结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
    Comparison and analysis of measured and simulated data with the same SNR.相同信噪比实测数据与仿真数据对比分析
    SNR of 1.5 s integration time interferograms积分时间1.5 s实测干涉图信噪比
    • Table 1. Principle components.

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      Table 1. Principle components.

      干涉仪基础光程差50 mm
      光谱分辨率0.78 cm–1
      探测器量化位数16 bit
      满阱电荷100000 e–1
      读出噪声(5 MHz)18 e–1
      暗电流噪声(–75 ℃)0.0003 e–1/pixel/sec
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    Chen Sun, Yu-Tao Feng, Di Fu, Ya-Fei Zhang, Juan Li, Xue-Bin Liu. A propagation of interferogram signal-to-noise (SNR) and phase uncertainty in Doppler asymmetric spatial heterodyne spectrometer[J]. Acta Physica Sinica, 2020, 69(1): 014202-1

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    Paper Information

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    Received: Aug. 2, 2019

    Accepted: --

    Published Online: Nov. 4, 2020

    The Author Email:

    DOI:10.7498/aps.69.20191179

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