1 July 1990 Absolute piston phasing of segmented-mirror optical systems using depth-modulated white-light interferometry
Author Affiliations +
Abstract
A method of phasing segmented-mirror systems using a new form of white-light radial-shear interferometer is presented. The device was used in a laboratory proof-of-concept demonstration to phase two elements of an annularly segmented mirror. This co-phasing was achieved both manually and with low-bandwidth closed-loop servo control using a new and perhaps simpler modulation technique than that proposed previously. The configuration used in the demonstration is described, together with some initial results.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard F. Horton, Ernest E. Huber, Leonas A. Bernotas, L. G. B. Yee, A. V. Roberts, J. M. Norton, Edward G. Corbett, Ronald A. Humphreys, "Absolute piston phasing of segmented-mirror optical systems using depth-modulated white-light interferometry", Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19263; https://doi.org/10.1117/12.19263
PROCEEDINGS
11 PAGES


SHARE
Back to Top