Open AccessComputer-guided alignment II :Optical system alignment using differential wavefront sampling
Author(s) -
Hanshin Lee,
Gavin Dalton,
Ian Tosh,
Sug Whan Kim
Publication year - 2007
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.015424
Subject(s) - wavefront , robustness (evolution) , optics , monte carlo method , adaptive optics , computer science , deformable mirror , matrix method , sampling (signal processing) , tilt (camera) , algorithm , physics , mathematics , biochemistry , chemistry , statistics , geometry , detector , gene
We present a differential wavefront sampling method for the efficient alignment of centred optical systems. Using the inter-element effects reported in our previous study, this method generates a linear symmetric matrix that relates the optical wavefront to misalignments within the system. The solution vector of this matrix equation provides a unique description of decentre and tilt misalignments of the system. We give a comparison of this approach to the existing method in the first case study and then illustrate characteristics of the new approach using the subsequent four case studies and Monte-Carlo alignment simulations. The results reveal superiority of the method over the existing one in misalignment estimation accuracy and demonstrate the practical feasibility and robustness.