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Infrared and Laser Engineering, Volume. 50, Issue 6, 20200331(2021)

Development of optical antenna for middle infrared laser communication terminal

Xinrui Xu1, Xiangxiang Meng1,2、*, Shichen Wu1, Jianlong Wang1, and Suping Bai3
Author Affiliations
  • 1Shandong Institute of Aerospace Electronics Technology, Yantai 264000, China
  • 2School of Opto-Electronic Information Science and Technology, Yantai University, Yantai 264005, China
  • 3School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (12)
    References (9)
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    Figures & Tables(12)
    Diagram of inverted structure of Kepler telescope

    Fig. 1. Diagram of inverted structure of Kepler telescope

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    Optical path diagram of transmitting optical antenna objective lens

    Fig. 2. Optical path diagram of transmitting optical antenna objective lens

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    Optical path diagram of transmitting optical antenna

    Fig. 3. Optical path diagram of transmitting optical antenna

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    Design results of transmitting optical antenna. (a) MTF; (b) Diagram of wavefront aberration

    Fig. 4. Design results of transmitting optical antenna. (a) MTF; (b) Diagram of wavefront aberration

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    Optical path diagram of receiving optical antenna

    Fig. 5. Optical path diagram of receiving optical antenna

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    Receiving optical antenna design results. (a) MTF; (b) Diagram of wavefront aberration; (c) Diagram of spot

    Fig. 6. Receiving optical antenna design results. (a) MTF; (b) Diagram of wavefront aberration; (c) Diagram of spot

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    Wavefront aberration with temperature

    Fig. 7. Wavefront aberration with temperature

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    Transmitting optical antenna. (a) Diagram of structure design; (b) Diagram of physical object (without hood)

    Fig. 8. Transmitting optical antenna. (a) Diagram of structure design; (b) Diagram of physical object (without hood)

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    Receiving optical antenna. (a) Diagram of structure design; (b) Diagram of physical object

    Fig. 9. Receiving optical antenna. (a) Diagram of structure design; (b) Diagram of physical object

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    MTF testing of transmitting optical antenna. (a) Testing; (b) The measured MTF

    Fig. 10. MTF testing of transmitting optical antenna. (a) Testing; (b) The measured MTF

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    Test results of receiving optical antenna wavefront aberration (test wavelength 632.8 nm)

    Fig. 11. Test results of receiving optical antenna wavefront aberration (test wavelength 632.8 nm)

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    • Table 1. Calculation table of midde infrared laser communication link

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      Table 1. Calculation table of midde infrared laser communication link

      ParameterSpecificationNotes
      Communication transmitting power/dBm17.78Laser modulation power is 60 mW，Laser wavelength is 4.7 μm
      Transmitting antenna gain/dB85.51The emission aperture is 290 mm
      Transmitting antenna loss/dB−2.22Transmitting optical efficiency is 0.6
      Wavefront loss/dB−1.71Wavefront aberration RMS≤0.1λ，λ= 4.7 μm
      Space loss/dB−208.510 km
      Alignment adaptation loss/dB−0.01High alignment precision
      Atmospheric absorption/dB−3.62Atmospheric attenuation
      Receiving antenna gain/dB106.1The receiving aperture is 310 mm
      Receiving antenna loss/dB−2.22Receiving optical efficiency is 0.6
      Detector actual receiving power/dBm−9.48Actual arrival power to detector
      Detector receiving threshold/dBm−12BER=10−6，1 Gpbs
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    Xinrui Xu, Xiangxiang Meng, Shichen Wu, Jianlong Wang, Suping Bai. Development of optical antenna for middle infrared laser communication terminal[J]. Infrared and Laser Engineering, 2021, 50(6): 20200331

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    Paper Information

    Category: Optical communication and sensing

    Received: Dec. 10, 2020

    Accepted: --

    Published Online: Aug. 19, 2021

    The Author Email: Meng Xiangxiang (mengxx326@126.com)

    DOI:10.3788/IRLA20200331

    Topics

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