Experimental validation of single-iteration multigrid wavefront reconstruction at the Palomar Observatory

Laurent Lessard, Douglas MacMynowski, Matthew West, Antonin Bouchez, Sanjay Lall

Research output: Contribution to journalArticlepeer-review

Abstract

Single-iteration multigrid (SIMG) wavefront reconstruction schemes were implemented and validated on the adaptive optics system at the Hale 5.1 m telescope at the Palomar Observatory. Results indicate that even the simplest such method produces a performance indistinguishable from that of the standard least-squares reconstructor for both bright and dim guide stars. SIMG provides a dramatic reduction in computational cost when compared to vector-matrix multiplication and can be implemented in parallel, making it the obvious choice for reconstruction in future large-scale adaptive optics systems.

Original languageEnglish (US)
Pages (from-to)2047-2049
Number of pages3
JournalOptics Letters
Volume33
Issue number18
DOIs
StatePublished - Sep 15 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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