Towards model-based adaptive optics optical coherence tomography

Hans R. G. W. Verstraete, Barry Cense, Rolf Bilderbeek, Michel Verhaegen, Jeroen Kalkman

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The transfer function for optical wavefront aberrations in single-mode fiber based optical coherence tomography is determined. The loss in measured OCT signal due to optical wavefront aberrations is quantified using Fresnel propagation and the calculation of overlap integrals. A distinction is made between a model for a mirror and a scattering medium model. The model predictions are validated with measurements on a mirror and a scattering medium obtained with an adaptive optics optical coherence tomography setup. Furthermore, a one-step defocus correction, based on a single A-scan measurement, is derived from the model and verified. Finally, the pseudo-convex structure of the optical coherence tomography transfer function is validated with the convergence of a hill climbing algorithm. The implications of this model for wavefront sensorless aberration correction are discussed. (c) 2014 Optical Society of America

Original languageEnglish
Pages (from-to)32406-32418
Number of pages13
JournalOptics Express
Volume22
Issue number26
DOIs
Publication statusPublished - 29 Dec 2014
Externally publishedYes

Cite this