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Acta Optica Sinica, Volume. 41, Issue 2, 0222003(2021)

Glass Selection and Optimization of Coaxial PGP Spectrometer

Baoze Guo1,2,3,4、*, Entao Shi1,2,3, Yongmei Wang1,2,3, and Xianguo Zhang1,2,3
Author Affiliations
  • 1National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
  • 2Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China
  • 3Key Laboratory of Environmental Space Situation Awareness Technology, Chinese Academy of Sciences, Beijing 100190, China
  • 4University of Chinese Academy of Sciences, Beijing 100190, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (13)
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    Figures & Tables(11)
    Structure of the traditional PGP spectrometer

    Fig. 1. Structure of the traditional PGP spectrometer

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    Hoogland's diagram

    Fig. 2. Hoogland's diagram

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    Dispersion principle of the PGP system

    Fig. 3. Dispersion principle of the PGP system

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    Schematic diagram of the dispersion

    Fig. 4. Schematic diagram of the dispersion

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    Optical layout of the achromatic focus lens

    Fig. 5. Optical layout of the achromatic focus lens

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    MTF curve and axial chromatic aberration. (a) MTF curve; (b) axial chromatic aberration

    Fig. 6. MTF curve and axial chromatic aberration. (a) MTF curve; (b) axial chromatic aberration

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    Optical layout of PGP imaging spectrometer system

    Fig. 7. Optical layout of PGP imaging spectrometer system

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    System's light spot print at resolution of 2.8 nm. (a) 0.4 μm; (b) 1.0 μm

    Fig. 8. System's light spot print at resolution of 2.8 nm. (a) 0.4 μm; (b) 1.0 μm

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    Spot X curve and MTF curves of different wavelengths. (a) Spot X curve; (b) 0.4 μm; (c) 0.7 μm; (d) 1.0 μm

    Fig. 9. Spot X curve and MTF curves of different wavelengths. (a) Spot X curve; (b) 0.4 μm; (c) 0.7 μm; (d) 1.0 μm

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    • Table 1. Optical power and the minimum chromatic change of the three glass

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      Table 1. Optical power and the minimum chromatic change of the three glass

      Glass1Glass2Glass3GΔLφ1φ2φ3
      N-KZFS11BASF52PSK5212.1972.32×10-4-5.5983.4613.138
      N-KZFS11N-FK51PSK528.7461.87×10-40.1394.734-3.873
      N-BAK4BAFN6FK5110.4256.98×10-4-4.7121.8963.817
      N-BAK4N-FK51SK57.4582.29×10-40.4913.738-3.229
      N-BAK2FK51LASFN3010.1731.80×10-4-4.5874.4801.107
      N-BAK1LAF20PK51A10.7172.32×10-4-4.8591.1284.731
      N-BAK1P-LASF47N-PK529.9641.02×10-4-4.4820.9114.571
      K10N-FK51KZFSN411.5262.06×10-4-5.2634.4701.794
      N-PK52AP-LAK35LLF28.3222.41×10-53.329-3.6611.332
      N-PK52AN-PSK53KZFSN412.7202.88×10-56.052-5.8600.807
      N-FK51LLF6HTSK57.0182.10×10-43.7830.226-3.009
      N-LAK33AFK51LAFN2810.9252.34×10-4-4.9623.0082.955
      BAF3FK51N-SK189.5801.12×10-41.5313.758-4.290
      BAF8FK51LAKN68.2446.65×10-50.8503.772-3.622

    • Table 2. Main parameters of the PGP system

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      Table 2. Main parameters of the PGP system

      Performance parameterValue
      Spectral range /nm400--1000
      Spectral resolution /nm2.8
      F number2.8
      Slit /(μm×mm)20×9.2
      Spatial resolution /μmRMS: spot radius less than 9.5
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    Baoze Guo, Entao Shi, Yongmei Wang, Xianguo Zhang. Glass Selection and Optimization of Coaxial PGP Spectrometer[J]. Acta Optica Sinica, 2021, 41(2): 0222003

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    Paper Information

    Category: Optical Design and Fabrication

    Received: Jul. 6, 2020

    Accepted: Aug. 28, 2020

    Published Online: Feb. 27, 2021

    The Author Email: Guo Baoze (1024785056@qq.com)

    DOI:10.3788/AOS202141.0222003

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology