OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 16 — Jun. 1, 2004
  • pp: 3279–3286

Efficient method for the reduction of large piston errors in segmented-mirror telescopes

Gary Chanan and Agustí Pintó  »View Author Affiliations


Applied Optics, Vol. 43, Issue 16, pp. 3279-3286 (2004)
http://dx.doi.org/10.1364/AO.43.003279


View Full Text Article

Enhanced HTML    Acrobat PDF (273 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Phase discontinuity sensing (PDS) is one of two successful approaches to segment phasing that are currently in use at the Keck telescopes, but it has only a limited capture range. We describe and present numerical simulations of a broadband version of the current (narrowband) PDS algorithm that can extend the capture range from 0.4 to 40 μm. Like the original algorithm, the new broadband PDS algorithm requires no special-purpose hardware but only a high-resolution area detector operating in the 2–3-μm range. The potential application of this algorithm to extremely large telescopes is also discussed.

© 2004 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(220.1140) Optical design and fabrication : Alignment

History
Original Manuscript: November 21, 2003
Revised Manuscript: March 11, 2004
Published: June 1, 2004

Citation
Gary Chanan and Agustí Pintó, "Efficient method for the reduction of large piston errors in segmented-mirror telescopes," Appl. Opt. 43, 3279-3286 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-16-3279


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. G. A. Chanan, M. Troy, F. G. Dekens, S. Michaels, J. Nelson, T. Mast, D. Kirkman, “Phasing the mirror segments of the Keck telescopes: the broadband phasing algorithm,” Appl. Opt. 37, 140–155 (1998). [CrossRef]
  2. G. A. Chanan, C. Ohara, M. Troy, “Phasing the mirror segments of the Keck telescopes II: the narrow-band phasing algorithm,” Appl. Opt. 39, 4706–4714 (2000). [CrossRef]
  3. G. A. Chanan, “Design of the Keck Observatory alignment camera,” in Precision Instrument Design, T. C. Bristow, A. E. Hathaway, eds., Proc. SPIE1036, 59–70 (1988). [CrossRef]
  4. J. E. Nelson, T. S. Mast, S. M. Faber, “The design of the Keck Observatory and Telescope,” Keck Observatory Rep. 90 (Keck Observatory, Kamuela, Hawaii, 1985).
  5. G. Chanan, M. Troy, E. Sirko, “Phase discontinuity sensing: a method for phasing segmented mirrors in the infrared,” Appl. Opt. 38, 704–713 (1999). [CrossRef]
  6. K. Matthews, B. T. Soifer, “The near infrared camera on the W. M. Keck Telescope,” in Infrared Astronomy with Arrays: The Next Generation, I. S. McLean, ed. (Kluwer Academic, Boston, Mass., 1994), pp. 239–246. [CrossRef]
  7. J. E. Nelson, “Progress on the California Extremely Large Telescope (CELT),” in Future Giant Telescopes, J. R. P. Angel, R. Gilmozzi, eds., Proc. SPIE4840, 47–59 (2002). [CrossRef]
  8. T. Andersen, A. L. Ardeberg, J. Beckers, A. Goncharov, M. Owner-Petersen, H. Riewaldt, R. Snel, D. Walker, “The Euro-50 Extremely Large Telescope,” in Future Giant Telescopes, J. R. P. Angel, R. Gilmozzi, eds., Proc. SPIE4840, 214–225 (2002). [CrossRef]
  9. P. Dierickx, J. L. Beckers, E. Brunetto, R. Conan, E. Fedrigo, R. Gilmozzi, N. Hubin, F. Koch, M. Lelouarn, E. Marchetti, G. J. Monnet, L. Noethe, M. Quattri, M. S. Sarazin, J. Spyromilio, N. Yaitskova, “The eye of the beholder: designing the OWL,” in Future Giant Telescopes, J. R. P. Angel, R. Gilmozzi, eds., Proc. SPIE4840, 151–170 (2002). [CrossRef]
  10. S. C. Roberts, C. L. Morbey, D. R. Crabtree, R. Carlberg, D. Crampton, T. J. Davidge, J. T. Fitzsimmons, M. H. Gedig, D. J. Halliday, J. E. Hesse, R. G. Herriot, J. B. Oke, J. S. Pazder, K. Szeto, J.-P. Veran, “Canadian Very Large Optical Telescope technology studies,” in Future Giant Telescopes, J. R. P. Angel, R. Gilmozzi, eds., Proc. SPIE4840, 104–115 (2002). [CrossRef]
  11. S. E. Strom, L. M. Stepp, B. Gregory, “Giant Segmented Mirror Telescope: a point design based on science drivers,” in Future Giant Telescopes, J. R. P. Angel, R. Gilmozzi, eds., Proc. SPIE4840, 116–128 (2002). [CrossRef]
  12. J. Nelson, ed., “The California Extremely Large Telescope,” CELT Rep. 34 (University of California and California Institute of Technology, Santa Cruz, Calif., 2002).
  13. K. Creath, “Step height measurement using two-wavelength phase-shifting interferometry,” Appl. Opt. 26, 2810–2816 (1987). [CrossRef] [PubMed]
  14. M. Löfdahl, H. Eriksson, “An algorithm for resolving 2π ambiguities in interferometric measurements by use of multiple wavelengths,” Opt. Eng. 40, 984–990 (2001). [CrossRef]
  15. R. Cohen, T. Mast, J. Nelson, “Performance of the W. M. Keck Telescope active mirror control system,” in Advanced Technology Optical Telescopes, V. L. M. Stepp, ed., Proc. SPIE2199, 105–116 (1994). [CrossRef]
  16. T. Mast, J. Nelson, G. Chanan, “Sampling segment phases: minimal spanning sets of zero-sum triplets,” Keck Observatory Tech. Note 208 (Keck Library, Kamuela, Hawaii, 1986).
  17. W. Press, B. Flannery, S. Teukolsky, W. Vetterling, Numerical Recipes: The Art of Scientific Computing, 1st ed. (Cambridge U. Press, New York, 1989), pp. 484–487.
  18. E. Anderson, Z. Bai, C. Bischof, J. Demmel, J. Dongarra, J. D. Croz, A. Greenbaum, S. Hammarling, A. McKenney, S. Ostrouchov, D. Sorensen, “LAPACK User’s Guide,” 2nd ed. (Society for Industrial and Applied Mathematics, Philadelphia, Pa., 1995).
  19. M. Troy, G. Chanan, E. Sirko, E. Leffert, “Residual misalignments of the Keck Telescope primary mirror segments: classification of modes and implications for adaptive optics,” in Advanced Technology Optical Telescopes VI, L. M. Stepp, ed., Proc. SPIE3352, 307–316 (1998). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited