Optical system for closed-loop testing of adaptive optic convex mirror

R. J. Sarlot, James H Burge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Steward Observatory is building a deformable f/15 secondary mirror for the 6.5 m Multiple Mirror Telescope conversion that will compensate for atmospheric turbulence. A potential difficulty of an adaptive secondary mirror is the ability to verify the commanded mirror shapes of a large convex deformable surface. A new optical design is presented to test the deformable mirror's closed loop control system by optically projecting an artificial star to simulate starlight in the actual telescope. An optical fiber fed interferometer has been incorporated into the design to measure the deformable mirror's ability to compensate for atmospheric turbulence by measuring the wavefront through an atmospheric turbulence generator. The test system has been designed to verify the control system by fitting into both a laboratory test structure as well as the telescope support structure itself. The optical design relies on two wavelength computer generated holograms used to remove spherical aberration as well as aid in the alignment of the test system optics by projecting alignment patterns.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Pages126-135
Number of pages10
Volume3430
StatePublished - 1998
EventProceedings of the 1998 Conference on Novel Optical Systems and Large-Aperture Imaging - San Diego, CA, USA
Duration: Jul 20 1998Jul 21 1998

Other

OtherProceedings of the 1998 Conference on Novel Optical Systems and Large-Aperture Imaging
CitySan Diego, CA, USA
Period7/20/987/21/98

Fingerprint

Adaptive optics
adaptive optics
Optical systems
atmospheric turbulence
Mirrors
mirrors
Atmospheric turbulence
deformable mirrors
Testing
telescopes
Telescopes
Optical design
alignment
aberration
Closed loop control systems
observatories
generators
interferometers
optical fibers
Antenna feeders

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Sarlot, R. J., & Burge, J. H. (1998). Optical system for closed-loop testing of adaptive optic convex mirror. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3430, pp. 126-135). SPIE.

Optical system for closed-loop testing of adaptive optic convex mirror. / Sarlot, R. J.; Burge, James H.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3430 SPIE, 1998. p. 126-135.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sarlot, RJ & Burge, JH 1998, Optical system for closed-loop testing of adaptive optic convex mirror. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3430, SPIE, pp. 126-135, Proceedings of the 1998 Conference on Novel Optical Systems and Large-Aperture Imaging, San Diego, CA, USA, 7/20/98.
Sarlot RJ, Burge JH. Optical system for closed-loop testing of adaptive optic convex mirror. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3430. SPIE. 1998. p. 126-135
Sarlot, R. J. ; Burge, James H. / Optical system for closed-loop testing of adaptive optic convex mirror. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3430 SPIE, 1998. pp. 126-135
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