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Proceedings Paper

An integrated test-bed for PAT testing and verification of inter-satellite lasercom terminals
Author(s): Liren Liu; Lijuan Wang; Jianfeng Sun; Yu Zhou; Xianghong Zhong; De'an Liu; Aiming Yan; Nan Xu
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Paper Abstract

It is necessary, on the ground in a laboratory, to test the technical parameters and to verify the working performance for the optical pointing, acquisition and tracking (PAT) of an inter-satellite lasercom terminal. In this paper, we report a completed PAT test-bed for this aim. The test-bed works in a fully physical way and is an integration of a 2D optical scanner of two rotating prisms, a 2D fine beam deflector of two tilting optical wedges and a double-focus laser collimator, the overall aperture is about Φ440mm. The optical scanner is designed to scan the beam in the range of 30° with an accuracy of 100μrad and used to simulate the mutual movement between two satellites. The fine beam deflector has the maximum beam deviation of about 1mrad with a step of 0.5μrad and is used to measure the tracking error of a terminal. The collimator has the double focal lengths, respectively, of 1.5m and 10m, the former provides a wide view of field for the use in the acquisition process of the terminal and the latter a narrow view of field for the use in the tracking process. In this paper, the design and fabrication considerations of the PAT test-bed as well as the main specifications of the completed integrated test-bad are given.

Paper Details

Date Published: 25 September 2007
PDF: 5 pages
Proc. SPIE 6709, Free-Space Laser Communications VII, 670904 (25 September 2007); doi: 10.1117/12.731949
Show Author Affiliations
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Lijuan Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Xianghong Zhong, Shanghai Institute of Optics and Fine Mechanics (China)
De'an Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Aiming Yan, Shanghai Institute of Optics and Fine Mechanics (China)
Nan Xu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 6709:
Free-Space Laser Communications VII
Arun K. Majumdar; Christopher C. Davis, Editor(s)

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