Large-aperture laser beam scanner for inter-satellite laser communications ground test: assembly and test

Jianfeng Sun; Lei Yang; Liren Liu; Qiande Shen; Nan Xu

doi:10.1117/12.678256

1 September 2006 Large-aperture laser beam scanner for inter-satellite laser communications ground test: assembly and test

Jianfeng Sun, Lei Yang, Liren Liu, Qiande Shen, Nan Xu

Author Affiliations +

Proceedings Volume 6304, Free-Space Laser Communications VI; 63041V (2006) https://doi.org/10.1117/12.678256
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

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.

Citation Download Citation

Jianfeng Sun, Lei Yang, Liren Liu, Qiande Shen, and Nan Xu "Large-aperture laser beam scanner for inter-satellite laser communications ground test: assembly and test", Proc. SPIE 6304, Free-Space Laser Communications VI, 63041V (1 September 2006); https://doi.org/10.1117/12.678256

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