## Abstract

Several sensor-less wavefront aberration correction methods that correct nonlinear wavefront aberrations by maximizing the optical coherence tomography (OCT) signal are tested on an OCT setup. A conventional coordinate search method is compared to two model-based optimization methods. The first model-based method takes advantage of the well-known optimization algorithm (NEWUOA) and utilizes a quadratic model. The second model-based method (DONE) is new and utilizes a random multidimensional Fourier-basis expansion. The model-based algorithms achieve lower wavefront errors with up to ten times fewer measurements. Furthermore, the newly proposed DONE method outperforms the NEWUOA method significantly. The DONE algorithm is tested on OCT images and shows a significantly improved image quality.

© 2015 Optical Society of America

Full Article | PDF Article## Corrections

10 December 2015: A correction was made to the author listing.

**OSA Recommended Articles**

Hans R. G. W. Verstraete, Morgan Heisler, Myeong Jin Ju, Daniel Wahl, Laurens Bliek, Jeroen Kalkman, Stefano Bonora, Yifan Jian, Michel Verhaegen, and Marinko V. Sarunic

Biomed. Opt. Express **8**(4) 2261-2275 (2017)

Huang Linhai and Changhui Rao

Opt. Express **19**(1) 371-379 (2011)

Kayvan F Tehrani, Jianquan Xu, Yiwen Zhang, Ping Shen, and Peter Kner

Opt. Express **23**(10) 13677-13692 (2015)