DCATT dispersed fringe sensor: modeling and experimenting with the transmissive phase plates

Fang Shi; David C. Redding; Charles W. Bowers; Andrew E. Lowman; Scott A. Basinger; Todd A. Norton; Peter Petrone III; Pamela S. Davila; Mark E. Wilson; Rene A. Boucarut

doi:10.1117/12.394011

28 July 2000 DCATT dispersed fringe sensor: modeling and experimenting with the transmissive phase plates

Fang Shi, David C. Redding, Charles W. Bowers, Andrew E. Lowman, Scott A. Basinger, Todd A. Norton, Peter Petrone III, Pamela S. Davila, Mark E. Wilson, Rene A. Boucarut

Author Affiliations +

Proceedings Volume 4013, UV, Optical, and IR Space Telescopes and Instruments; (2000) https://doi.org/10.1117/12.394011
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

Control algorithms developed for coarse phasing the segmented mirrors of the Next Generation Space Telescope (NGST) are being tested in realistic modeling and on the NGST wavefront control testbed, also known as DCATT. A dispersed fringe sensor (DFS) is used to detect piston errors between mirror segments during the initial coarse phasing. Both experiments and modeling have shown that the DFS provides an accurate measurement of piston errors over a range from just under a millimeter to well under a micron.

Citation Download Citation

Fang Shi, David C. Redding, Charles W. Bowers, Andrew E. Lowman, Scott A. Basinger, Todd A. Norton, Peter Petrone III, Pamela S. Davila, Mark E. Wilson, and Rene A. Boucarut "DCATT dispersed fringe sensor: modeling and experimenting with the transmissive phase plates", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); https://doi.org/10.1117/12.394011

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