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Proceedings Paper

Laser beam director system monitoring the alignment state with a null reflector
Author(s): Yeon Soo Kim; Hyun Sook Kim; Yong Chan Park; Eung Cheol Kang; Soo Sang Lee; Jeong Ju Kim; Hae Dong Eom; Sung Un Park
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Paper Abstract

The laser beam director (LBD) is a reflective telescope which has a long optical Coude path. Its optical path can be off the original aligned if rotational jitter of the telescope turret occurs or structural deformation in the LBD due to external disturbances occurs. It can make the laser beam deviate from the line of sight of the telescope. Therefore misalignment must be monitored and corrected. We adapt null optics to the telescope in order to monitor alignment state of the LBD. Misalignment is corrected in real time through the fast steering mirror located between the primary and secondary mirror of the telescope. Test results on rotation of the telescope turret show that aligned state of the LBD is kept in spite of rotational jitter of the turret.

Paper Details

Date Published: 10 May 2007
PDF: 9 pages
Proc. SPIE 6569, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXI, 656909 (10 May 2007); doi: 10.1117/12.718106
Show Author Affiliations
Yeon Soo Kim, Agency for Defense Development (South Korea)
Hyun Sook Kim, Agency for Defense Development (South Korea)
Yong Chan Park, Agency for Defense Development (South Korea)
Eung Cheol Kang, Agency for Defense Development (South Korea)
Soo Sang Lee, Doosan Infracore Ltd. (South Korea)
Jeong Ju Kim, Doosan Infracore Ltd. (South Korea)
Hae Dong Eom, Doosan Infracore Ltd. (South Korea)
Sung Un Park, Doosan Infracore Ltd. (South Korea)


Published in SPIE Proceedings Vol. 6569:
Acquisition, Tracking, Pointing, and Laser Systems Technologies XXI
Steven L. Chodos; William E. Thompson, Editor(s)

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