Performance of the Gemini planet imager's adaptive optics system

Lisa A. Poyneer*, David W. Palmer, Bruce Macintosh, Dmitry Savransky, Naru Sadakuni, Sandrine Thomas, Jean Pierre Véran, Katherine B. Follette, Alexandra Z. Greenbaum, S. Mark Ammons, Vanessa P. Bailey, Brian Bauman, Andrew Cardwell, Daren Dillon, Donald Gavel, Markus Hartung, Pascale Hibon, Marshall D. Perrin, Fredrik T. Rantakyrö, Anand SivaramakrishnanJason J. Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

The Gemini Planet Imager's adaptive optics (AO) subsystem was designed specifically to facilitate high-contrast imaging. A definitive description of the system's algorithms and technologies as built is given. 564 AO telemetry measurements from the Gemini Planet Imager Exoplanet Survey campaign are analyzed. The modal gain optimizer tracks changes in atmospheric conditions. Science observations show that image quality can be improved with the use of both the spatially filtered wavefront sensor and linear-quadratic-Gaussian control of vibration. The error budget indicates that for all targets and atmospheric conditions AO bandwidth error is the largest term.

Original languageEnglish (US)
Pages (from-to)323-340
Number of pages18
JournalApplied optics
Volume55
Issue number2
DOIs
StatePublished - Jan 10 2016

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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