Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems

Hanshin Lee; Gavin B. Dalton; Ian A.J. Tosh; Sug Whan Kim

doi:10.1117/12.789160

Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems

Hanshin Lee, Gavin B. Dalton, Ian A.J. Tosh, Sug Whan Kim

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	Modeling, Systems Engineering, and Project Management for Astronomy III
DOIs	https://doi.org/10.1117/12.789160
Publication status	Published - 2008
Event	Modeling, Systems Engineering, and Project Management for Astronomy III - Marseille, France Duration: 2008 Jun 26 → 2008 Jun 28

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7017
ISSN (Print)	0277-786X

Other

Other	Modeling, Systems Engineering, and Project Management for Astronomy III
Country	France
City	Marseille
Period	08/6/26 → 08/6/28

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

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Lee, H., Dalton, G. B., Tosh, I. A. J., & Kim, S. W. (2008). Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems. In Modeling, Systems Engineering, and Project Management for Astronomy III [70171T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7017). https://doi.org/10.1117/12.789160

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abstract = "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.",

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Lee, H, Dalton, GB, Tosh, IAJ & Kim, SW 2008, Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems. in Modeling, Systems Engineering, and Project Management for Astronomy III., 70171T, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7017, Modeling, Systems Engineering, and Project Management for Astronomy III, Marseille, France, 08/6/26. https://doi.org/10.1117/12.789160

Implementation of differential wavefront sampling in optical alignment of pupil-segmented telescope systems. / Lee, Hanshin; Dalton, Gavin B.; Tosh, Ian A.J.; Kim, Sug Whan.

Modeling, Systems Engineering, and Project Management for Astronomy III. 2008. 70171T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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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.

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