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Proceedings Paper

Large-aperture laser beam scanner for inter-satellite laser communications ground test: assembly and test
Author(s): Jianfeng Sun; Lei Yang; Liren Liu; Qiande Shen; Nan Xu
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Paper Abstract

Inter-satellite laser communications attracted more and more attentions due to its excellent performances compared with the RF communications. But the test and verification of the communication terminals are very difficult because of the accuracy and aperture requirement. Large-aperture laser beam scanner was introduced to simulate the relative movement between satellites in the process of ground test for terminals. The scanner includes two same circular wedge prisms, which can scan an arbitrary position in a cone zone. The motivation of the assembly is to guarantee the accuracy of the scanner. Since the large-aperture and high-precision of the scanner, the assembly and test become a very troublesome problem. The test includes: (1) confirm the principal section of the wedge prisms; (2) test the optical quality of the wedge prisms; (3) confirm the scan range of the scanner; (5) test the scan accuracy of the scanner. The test results indicate the assembly process is reasonable. The scan range and accuracy can satisfy the requirement of the ground test of the inter-satellite laser communications terminals.

Paper Details

Date Published: 1 September 2006
PDF: 4 pages
Proc. SPIE 6304, Free-Space Laser Communications VI, 63041V (1 September 2006); doi: 10.1117/12.678256
Show Author Affiliations
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Lei Yang, Shanghai Institute of Optics and Fine Mechanics (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Qiande Shen, Shanghai Institute of Optics and Fine Mechanics (China)
Nan Xu, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 6304:
Free-Space Laser Communications VI
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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