Computer-guided alignment II: Optical system alignment using differential wavefront sampling

Hanshin Lee, Gavin B. Dalton, Ian A.J. Tosh, Sug Whan Kim

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)15424-15437
Number of pages14
JournalOptics Express
Issue number23
Publication statusPublished - 2007 Nov 12

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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