• Chinese Optics Letters
  • Vol. 13, Issue 5, 051201 (2015)
Weiwei Pang1, Xiaobing Zheng1, Jianjun Li1、*, Xueshun Shi2, Haoyu Wu1, Maopeng Xia1, Dongyang Gao1, Jianmin Shi1, Tao Qi1, and Qing Kang1
Author Affiliations
  • 1Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei 230031, China
  • 2The 41st Institute of China Electronics Technology Group Corporation, Qindao 266555, China
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    DOI: 10.3788/COL201513.051201 Cite this Article Set citation alerts
    Weiwei Pang, Xiaobing Zheng, Jianjun Li, Xueshun Shi, Haoyu Wu, Maopeng Xia, Dongyang Gao, Jianmin Shi, Tao Qi, Qing Kang. Novel calibration optical path of cryogenic radiometer[J]. Chinese Optics Letters, 2015, 13(5): 051201 Copy Citation Text show less
    Laser power measurement based on cryogenic radiometer.
    Fig. 1. Laser power measurement based on cryogenic radiometer.
    Transfer detector on calibration of cryogenic radiometer.
    Fig. 2. Transfer detector on calibration of cryogenic radiometer.
    Novel structure on the calibration of cryogenic radiometer.
    Fig. 3. Novel structure on the calibration of cryogenic radiometer.
    Transfer detector installed in detector cavity.
    Fig. 4. Transfer detector installed in detector cavity.
    Optical path on the calibration of cryogenic radiometer.
    Fig. 5. Optical path on the calibration of cryogenic radiometer.
    Wavelength (nm)
    Sources488514633676786830944
    Electrical power0.310.3620.3890.2960.2600.1740.140
    Window transmittance1.5250.6091.5290.4370.4530.5210.520
    Receiver absorptance0.1
    Heating nonequivalence0.087
    Total uncertainty1.5410.6521.5480.4880.5390.5650.555
    Percent98.9693.4098.7789.5584.0492.2193.69
    Table 1. Uncertainty on Measuring the Laser Power of Cryogenic Radiometera
    Technical Specifications 
    Instrument modelCryorad II
    Spectrum0.25–50 μm
    Receiver response2KmW1
    Dynamic rangeMax to 0.25 mW
    Absolute accuracy±0.005%
    Receiver absorptance>0.99998 (632.8 nm)
    Refrigeration modeLiquid nitrogen
    Liquid helium
    Calibration structureY-type
    Demount Brewster windowNo
    Table 2. Technique Parameter of Cryogenic Radiometer at the Anhui Institute of Optics and Fine Mechanics
     Absolute Spectral Responsivity (A/W)
    DetectorTraditionala (2008)Novel (2014)
    Trap-B0.50690.5045
    K0.4%
    Table 3. Comparison on Responsivity of Transfer Detector in Novel Calibration Structure and Traditional Calibration Structure
    SourceTraditional Calibration Structure (2008)bNovel Calibration Optical Path (2014)
    Electrical power0.3890.671
    Window transmittance1.529
    Receiver absorptance0.10.1
    Heating nonequivalence0.0870.05195
    Laser power total uncertainty1.58320.6804
    Linearity0.434
    Spatial uniformity1.99
    Polarization sensitivity0.492
    Stability0.687
    Output V0.0250.0244
    Total uncertainty (k=1)2.7152.321
    Table 4. Compare of Combine Uncertainty of Transfer Detector between Traditional and Novela
    Weiwei Pang, Xiaobing Zheng, Jianjun Li, Xueshun Shi, Haoyu Wu, Maopeng Xia, Dongyang Gao, Jianmin Shi, Tao Qi, Qing Kang. Novel calibration optical path of cryogenic radiometer[J]. Chinese Optics Letters, 2015, 13(5): 051201
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