Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Adaptive optics sky coverage modeling for extremely large telescopes.

Richard M Clare1, Brent L Ellerbroek, Glen Herriot

  • 1Thirty Meter Telescope Project, California Institute of Technology, 1200 E. California Boulevard, Mail Code 102-8, Pasadena, California 91125, USA. rclare@keck.hawaii.edu

Applied Optics
|November 23, 2006
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Modal sensitivity and dynamic range tuning with the bi-orthogonal edge wavefront sensor.

Applied optics·2025
Same author

Direct wavefront reconstruction with the cone wavefront sensor using the inverse radon transform.

Applied optics·2023
Same author

David L. Fried: bringing vision to atmospheric optics [Invited].

Applied optics·2023
Same author

Mitigation of truncation effects in elongated Shack-Hartmann laser guide star wavefront sensor images.

Applied optics·2020
Same author

Performance of the Gemini Planet Imager's adaptive optics system.

Applied optics·2016
Same author

Characterization of near-field ptychography.

Optics express·2015
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

This study refines a sky coverage model for adaptive optics systems, incorporating natural guide star data and various error sources. The improved model aids in designing systems like the Thirty Meter Telescope’s NFIRAOS, reducing tip-tilt error.

Area of Science:

  • Astronomy
  • Optical Engineering
  • Adaptive Optics

Background:

  • Adaptive optics (AO) systems require accurate sky coverage models for optimal performance.
  • Previous models for laser guide star AO systems exist but lack comprehensive natural guide star (NGS) integration.
  • Accurate wavefront sensing and control are critical for high-resolution astronomical imaging.

Purpose of the Study:

  • To refine an existing Monte Carlo sky coverage model for AO systems.
  • To incorporate detailed natural guide star (NGS) statistics and error sources.
  • To generate a tip-tilt (TT) error budget for the Thirty Meter Telescope's NFIRAOS and conduct design trade studies.

Main Methods:

  • Enhanced a Monte Carlo sky coverage model by including NGS statistics from published star count models.

Related Experiment Videos

  • Incorporated noise in NGS measurements, telescope wind shake, and field-dependent Strehl ratio variations.
  • Modeled focus error from sodium layer range tracking, mechanical bandwidths of TT stage and deformable mirror, and temporal filtering of NGS measurements.

    • Main Results:

    • Developed a refined sky coverage model for AO systems utilizing natural guide stars.
    • Generated a detailed TT error budget for the Thirty Meter Telescope's narrow-field infrared adaptive optics system (NFIRAOS).
    • Calculated a median TT error of 65 nm or 1.8 mas rms at the galactic pole under median seeing conditions for the current NFIRAOS design.

    Conclusions:

    • The refined model provides a more accurate prediction of AO system performance with natural guide stars.
    • The TT error budget and trade studies inform the design optimization of NFIRAOS.
    • The study demonstrates the feasibility of achieving high-performance AO with natural guide stars for ground-based telescopes.