Laser & Optoelectronics Progress, Volume. 61, Issue 7, 0706021(2024)
Design of Ground Receiver System For 500 mm Aperture Satellite-Ground Laser Communication
Figures & Tables(23)
Fig. 4. Performance diagrams of Cassegrain antenna unit. (a) Diagram of RMS wave aberration curve; (b) spot radius
Fig. 6. Performance diagrams of tilting mirror precision tracking unit. (a) Diagram of RMS wave aberration curve; (b) spot radius
Fig. 9. Performance diagrams of AO ultra precision tracking unit. (a) Diagram of RMS wave aberration curve; (b) spot radius
Fig. 12. Performance diagrams of double telecentric system. (a) Diagram of distortion; (b) diagram of MTF curve
Table 1. Design parameters of Cassegrain antenna reduction unit
View tableTable 1. Design parameters of Cassegrain antenna reduction unit
Antenna aperture /mm Field /μrad Magnification factor Operating wavelength /nm Temperature range /℃ 500 650 10 1550， 808 10‒30
Table 2. Design parameters of tilting mirror precision tracking, AO ultra-precision tracking unit
View tableTable 2. Design parameters of tilting mirror precision tracking, AO ultra-precision tracking unit
Tracking unit Field /μrad Operating wavelength /nm Tracking accuracy /μrad Temperature range /℃ Tilted mirror precision tracking 650 808 34.0 10‒30 AO ultra-Precise tracking 180 808 6.8 10‒30
Table 3. System telecentricity
View tableTable 3. System telecentricity
Object height 0H 0.3H 0.5H 0.7H 1H Telecentricity /（°） 0.00561 0.00675 0.00858 0.00989 0.00658
Table 4. Tolerance distribution table for Cassegrain antenna reduction unit
View tableTable 4. Tolerance distribution table for Cassegrain antenna reduction unit
Parameter Displacement Primary mirror Secondary mirror Decenter X /mm 0.02 0.02 Decenter Y /mm 0.02 0.02 Decenter Z /mm 0.02 0.02 Tilted X /（″） 36 36 Tilted Y /（″） 36 36 Tilted Z /（″） 36 36 Aperture 2 2 Local aperture 0.2 0.2
Table 5. Tolerance distribution table for tilting mirror precision tracking unit
View tableTable 5. Tolerance distribution table for tilting mirror precision tracking unit
Parameter Displacement Surface 1 Surface 2 Surface 3 Surface 4 Decenter /mm 0.03 0.03 0.03 0.03 Thickness /mm 0.05 0.05 0.05 0.05 Tilted /（″） 90 90 90 90
Table 6. Tolerance distribution table for AO ultra-precision tracking unit
View tableTable 6. Tolerance distribution table for AO ultra-precision tracking unit
Parameter Displacement Surface 1 Surface 2 Surface 3 Surface 4 Decenter /mm 0.02 0.02 0.02 0.02 Thickness /mm 0.0375 0.0375 0.0375 0.0375 Tilted /（″） 60 60 60 60
Table 7. Tolerance distribution table for AO wavefront detection unit
View tableTable 7. Tolerance distribution table for AO wavefront detection unit
Parameter Displacement Surface 1 Surface 2 Surface 3 Surface 4 Decenter /mm 0.02 0.02 0.02 0.02 Thickness /mm 0.0375 0.0375 0.0375 0.0375 Tilted /（″） 60 60 60 60
Table 8. Table of simulation analysis results of each unit
View tableTable 8. Table of simulation analysis results of each unit
Temperature /℃ Displacement Cassegrain antenna Tilt mirror precision tracking unit（λ=808 nm） AO ultra-precision tracking unit（λ=808 nm） AO wavefront detection unit（λ=808 nm） λ=808 nm λ=1550 nm 10 0.061 0.039 0.069 0.064 0.063 15 0.058 0.035 0.067 0.061 0.059 20 0.057 0.032 0.063 0.059 0.055 25 0.056 0.029 0.061 0.059 0.053 30 0.058 0.031 0.065 0.061 0.057
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Cong Li, Xiaolong Ni, Xin Yu, Jun Liu, Suping Bai, Lixia Shi. Design of Ground Receiver System For 500 mm Aperture Satellite-Ground Laser Communication[J]. Laser & Optoelectronics Progress, 2024, 61(7): 0706021
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jan. 5, 2024
Accepted: Feb. 3, 2024
Published Online: Apr. 16, 2024
The Author Email: Lixia Shi (custslx@126.com)
CSTR:32186.14.LOP240623
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