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Applied Optics

Applied Optics


  • Vol. 44, Iss. 8 — Mar. 10, 2005
  • pp: 1355–1359

Holographic correction and phasing of large sparse-array telescopes

Geoff Andersen  »View Author Affiliations

Applied Optics, Vol. 44, Issue 8, pp. 1355-1359 (2005)

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I have constructed a 1-m-diameter telescope using separate, low-quality spherical primary mirror segments. A single hologram of the mirrors is used to correct the random surface distortions as well as spherical aberration, while simultaneously phasing the individual apertures together. I present experimental results of the removal of an error of thousands of waves to produce a diffraction-limited instrument operating over a narrow bandwidth. This technique promises to have many benefits in future space-based telescopes for imaging, lidar, and optical communications.

© 2005 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.1000) Holography : Aberration compensation
(110.5100) Imaging systems : Phased-array imaging systems
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics
(350.6090) Other areas of optics : Space optics

Geoff Andersen, "Holographic correction and phasing of large sparse-array telescopes," Appl. Opt. 44, 1355-1359 (2005)

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