TY - GEN
T1 - Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems
AU - Lee, Hanshin
AU - Dalton, Gavin B.
AU - Tosh, Ian A.J.
AU - Kim, Sug Whan
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - We describe the implementation of differential wavefront sampling(DWS) in optical alignment of a pupilsegmented telescope system. As a wavefront-based optical alignment method, DWS can efficiently provide estimations of misalignments present in an optical system by deliberately perturbing optical elements in a systematic manner. This has been demonstrated in our previous numerical studies with realistic uncertainties in wavefront measurements, motion control, and optical surface deformations, suggesting that the method has potential in optical alignment and phasing of pupil-segmented systems such as the future Extremely Large Telescopes (ELTs). The basic idea and procedures of DWS are first described. We then present and discuss preliminary simulations using the currently proposed European Extremely Large Telescope (E-ELT) as an example system.
AB - We describe the implementation of differential wavefront sampling(DWS) in optical alignment of a pupilsegmented telescope system. As a wavefront-based optical alignment method, DWS can efficiently provide estimations of misalignments present in an optical system by deliberately perturbing optical elements in a systematic manner. This has been demonstrated in our previous numerical studies with realistic uncertainties in wavefront measurements, motion control, and optical surface deformations, suggesting that the method has potential in optical alignment and phasing of pupil-segmented systems such as the future Extremely Large Telescopes (ELTs). The basic idea and procedures of DWS are first described. We then present and discuss preliminary simulations using the currently proposed European Extremely Large Telescope (E-ELT) as an example system.
UR - http://www.scopus.com/inward/record.url?scp=66849106731&partnerID=8YFLogxK
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U2 - 10.1117/12.789160
DO - 10.1117/12.789160
M3 - Conference contribution
AN - SCOPUS:66849106731
SN - 9780819472274
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Modeling, Systems Engineering, and Project Management for Astronomy III
T2 - Modeling, Systems Engineering, and Project Management for Astronomy III
Y2 - 26 June 2008 through 28 June 2008
ER -