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Proceedings Paper

Opto-mechanical design of a beam launch telescope
Author(s): Il Moon; Soosang Lee; Myung K. Cho
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Paper Abstract

The design and development of a beam launch telescope (BLT) was addressed herein. The BLT optical instruments have been commonly used for the applications of adaptive optics (laser guide star), optical communications, and other laser powered optical systems. In this study, a BLT with a primary mirror of 700 mm was investigated as a prototype optical system. The BLT optical system includes a lightweight primary mirror of 700 mm in daimeter, a secondary mirror of 110 mm, a fast steering mirror of 200 mm, and three flat mirrors (array/relay mirrors) of 200 mm. As a test bed, the BLT system was optimized for a spot size of 100mm at a far field (departed by 1km from the telescope). In this design and development study, a wide range of the opto-mechanical and structural analyses have been performed including: static (gravity and thermal), frequency, dynamic and response analysis, and optical evaluations for minimum optical deformation. The EDS I-DEAS Finite Element program and the PCFRINGE optical program are mainly used to fulfill this analysis. Image motion is also calculated based on line of sight (LOS) sensitivity equations integrated in finite element models.

Paper Details

Date Published: 9 September 2005
PDF: 10 pages
Proc. SPIE 5877, Optomechanics 2005, 58770I (9 September 2005); doi: 10.1117/12.615155
Show Author Affiliations
Il Moon, Univ. of Arizona (United States)
Soosang Lee, Doosan Infracore (South Korea)
Myung K. Cho, National Optical Astronomy Observatory (United States)

Published in SPIE Proceedings Vol. 5877:
Optomechanics 2005
Alson E. Hatheway, Editor(s)

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