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 proceedingConference 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 languageEnglish
Title of host publicationModeling, Systems Engineering, and Project Management for Astronomy III
DOIs
Publication statusPublished - 2008 Dec 1
EventModeling, Systems Engineering, and Project Management for Astronomy III - Marseille, France
Duration: 2008 Jun 262008 Jun 28

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7017
ISSN (Print)0277-786X

Other

OtherModeling, Systems Engineering, and Project Management for Astronomy III
CountryFrance
CityMarseille
Period08/6/2608/6/28

All Science Journal Classification (ASJC) codes

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

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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