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Proceedings Paper

Interferometric Control Of A Beam Expander Consisting Of Multiple Telescopes
Author(s): Christopher R. DeHainaut; Salvatore J. Cusumano; David E. Mick; George Lawrence
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Paper Abstract

The central problem in the design of a phased array beam expander is devising an alignment technique for pointing and phasing the subaperture telescopes. The advantages and disadvantages of the standard alignment methods are discussed briefly. The most promising candidate technique, heterodyne interferometry, is developed into an optical configuration suitable for breadboard test. The optical configuration is discussed on the basis of reduction of misalignment modes, athermal design, coherence length and polarization effects. Fabrication methods are considered. It is concluded that the optical configuration presented has the capability to meet the severe alignment requirements of a multiple telescope laser beam expander.

Paper Details

Date Published: 4 November 1982
PDF: 6 pages
Proc. SPIE 0332, Advanced Technology Optical Telescopes I, (4 November 1982); doi: 10.1117/12.933544
Show Author Affiliations
Christopher R. DeHainaut, Air Force Weapons Laboratory (United States)
Salvatore J. Cusumano, Air Force Weapons Laboratory (United States)
David E. Mick, Air Force Weapons Laboratory (United States)
George Lawrence, University of New Mexico (United States)


Published in SPIE Proceedings Vol. 0332:
Advanced Technology Optical Telescopes I
Lawrence D. Barr; Geoffrey Burbidge, Editor(s)

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