Experimental validation of single-iteration multigrid wavefront reconstruction at the Palomar Observatory.
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.
Lessard
Laurent
L
Department of Aeronautics, Stanford University, 496 Lomita Mall, Stanford, CA 94305, USA. lessard@stanford.edu
MacMynowski
Douglas
D
West
Matthew
M
Bouchez
Antonin
A
Lall
Sanjay
S