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Proceedings Paper

Full-surface interferometric scanner (FSIS) for testing large cylindrical mirror surfaces
Author(s): John L. Remo
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Paper Abstract

Adaptive and active optics in general, and laser power beaming in particular, requires the construction of large, complex mirror systems. Since these mirrors need to be tested with high accuracy to achieve optimum performance, their unusual shape and size often require the construction of special testing equipment. A full-surface interferometric scanning (FSIS) system for testing large cylindrical surfaces, which cannot be readily tested with current commercial interferometer systems, is described. The FSIS approach, using grating shearing interferometry, is based on interferometric slope measurement along the long direction of the cylindrical surface under test. The full surface measurement is synthesized from a discrete set of subaperture measurements obtained by scanning in the direction of the long side of the cylindrical surface. The FSIS is characterized by a high degree of immunity from the effects of vibration.

Paper Details

Date Published: 26 April 1995
PDF: 10 pages
Proc. SPIE 2376, Laser Power Beaming II, (26 April 1995); doi: 10.1117/12.208206
Show Author Affiliations
John L. Remo, Quantametrics Inc. (United States)

Published in SPIE Proceedings Vol. 2376:
Laser Power Beaming II
Harold E. Bennett; Richard D. Doolittle, Editor(s)

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