TY - JOUR
AU1 - Korkiakoski, Visa
AU2 - Keller, Christoph U.
AU3 - Doelman, Niek
AU4 - Fraanje, Rufus
AU5 - Andrei, Raluca
AU6 - Verhaegen, Michel
AB - We show experimental results demonstrating the feasibility of an extremely fast sequential phase-diversity (SPD)algorithm for point sources. The algorithm can be implemented on a typical adaptive optics (AO) system toimprove the wavefront reconstruction beyond the capabilities of a wavefront sensor by using the informationfrom the imaging camera. The algorithm is based on a small-phase approximation enabling fast numericalimplementation, and it finds the optimal wavefront correction by iteratively updating the deformable mirror.Our experiments were made at an AO-setup with a 37 actuator membrane mirror, and the results show thatthe algorithm finds an optimal image quality in 5–10 iterations, when the initial wavefront errors are typicalnon-common path aberrations having a magnitude of 1–1.5 rad rms. The results are in excellent agreement withcorresponding numerical simulations.
TI - Experimental validation of optimization concepts for focal-plane image processing with adaptive optics
JF - Proceedings of SPIE
DO - 10.1117/12.926266
DA - 2012-07-01
UR - https://www.deepdyve.com/lp/spie/experimental-validation-of-optimization-concepts-for-focal-plane-image-0TMEd60bc6
SP - 84475Z
EP - 84475Z-11
VL - 8447
IS - 
DP - DeepDyve
ER -