Combining beams from separated telescopes

Details Combining beams from separated telescopes Combining beams from separated telescopes

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apopt..25..528t&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 25, Feb. 15, 1986, p. 528-532.

Physics

Optics

30

Beams (Radiation), Imaging Techniques, Optical Paths, Telescopes, Coherent Light, Interferometry

Scientific paper

In the present paper, work is discussed which arose in the context of optical design studies for the proposed space-based COSMIC (Coherent Optical System of Modular Interferometric Collectors) telescope. The operation of COSMIC involves the combination of a number of parallel beams with a central beam-combining telescope which forms an image of the sky. The paper is mainly concerned with the aspects of beam combination. The paraxial constraint condition is considered along with tolerances regarding the individual optical elements, and imaging as a nonshearing recombination. A first-order requirement for achieving a finite field of view is discussed, taking into account specifically the case of a coherent imaging optical system.

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