Status of the 6.5 m MMT telescope Laser Adaptive Optics system

Eduardo A. Bendek, Michael Hart, Keith B. Powell, Norman M. Milton, Vidhya Vaitheeswaran, Donald W Mccarthy, Craig Kulesa, Shawn Callahan, S. Mark Ammons, Aurea Garcia Rissmann

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

9 Citations (Scopus)

Abstract

The Laser Adaptive Optics system of the 6.5 m MMT telescope has now been commissioned with Ground Layer Adaptive Optics operations as a tool for astronomical science. In this mode the wavefronts sampled by each of five laser beacons are averaged, leading to an estimate of the aberration in the ground layer. The ground layer is then compensated by the deformable secondary mirror at 400 Hz. Image quality of 0.2-0.3 arc sec is delivered in the near infrared bands from 1.2-2.5 um over a field of view of 2 arc minutes. Tomographic wavefront sensing tests in May 2010 produced open loop data necessary to streamline the software to generate a Laser Tomography Adaptive Optics (LTAO) reconstructor. In addition, we present the work being done to achieve optimal control PID wavefront control and thus increase the disturbance rejection frequency response for the system. Finally, we briefly describe plans to mount the ARIES near infrared imager and echelle spectrograph, which will support the 2 arc min ground-layer corrected field and will exploit the diffraction limit anticipated with LTAO.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7736
EditionPART 1
DOIs
StatePublished - 2010
EventAdaptive Optics Systems II - San Diego, CA, United States
Duration: Jun 27 2010Jul 2 2010

Other

OtherAdaptive Optics Systems II
CountryUnited States
CitySan Diego, CA
Period6/27/107/2/10

Fingerprint

Laser optics
Adaptive optics
Adaptive Optics
adaptive optics
Telescopes
Telescope
Wavefronts
telescopes
Laser
Arc of a curve
arcs
Tomography
Wave Front
lasers
Lasers
Infrared
tomography
Echelle
Infrared radiation
Wavefront Sensing

Keywords

  • Adaptive optics
  • Ground layer adaptive optics
  • Laser tomography
  • Optimal control
  • Rayleigh lasers

ASJC Scopus subject areas

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

Cite this

Bendek, E. A., Hart, M., Powell, K. B., Milton, N. M., Vaitheeswaran, V., Mccarthy, D. W., ... Rissmann, A. G. (2010). Status of the 6.5 m MMT telescope Laser Adaptive Optics system. In Proceedings of SPIE - The International Society for Optical Engineering (PART 1 ed., Vol. 7736). [77360O] https://doi.org/10.1117/12.857663

Status of the 6.5 m MMT telescope Laser Adaptive Optics system. / Bendek, Eduardo A.; Hart, Michael; Powell, Keith B.; Milton, Norman M.; Vaitheeswaran, Vidhya; Mccarthy, Donald W; Kulesa, Craig; Callahan, Shawn; Mark Ammons, S.; Rissmann, Aurea Garcia.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7736 PART 1. ed. 2010. 77360O.

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

Bendek, EA, Hart, M, Powell, KB, Milton, NM, Vaitheeswaran, V, Mccarthy, DW, Kulesa, C, Callahan, S, Mark Ammons, S & Rissmann, AG 2010, Status of the 6.5 m MMT telescope Laser Adaptive Optics system. in Proceedings of SPIE - The International Society for Optical Engineering. PART 1 edn, vol. 7736, 77360O, Adaptive Optics Systems II, San Diego, CA, United States, 6/27/10. https://doi.org/10.1117/12.857663
Bendek EA, Hart M, Powell KB, Milton NM, Vaitheeswaran V, Mccarthy DW et al. Status of the 6.5 m MMT telescope Laser Adaptive Optics system. In Proceedings of SPIE - The International Society for Optical Engineering. PART 1 ed. Vol. 7736. 2010. 77360O https://doi.org/10.1117/12.857663
Bendek, Eduardo A. ; Hart, Michael ; Powell, Keith B. ; Milton, Norman M. ; Vaitheeswaran, Vidhya ; Mccarthy, Donald W ; Kulesa, Craig ; Callahan, Shawn ; Mark Ammons, S. ; Rissmann, Aurea Garcia. / Status of the 6.5 m MMT telescope Laser Adaptive Optics system. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7736 PART 1. ed. 2010.
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