Performance of a MEMS-based AO-OCT system using Fourier Reconstruction
Abstract
Adaptive optics (AO) and optical coherence tomography (OCT) are powerful imaging modalities that, when combined, can provide high-resolution (3.5 {micro}m isotropic), 3-D images of the retina. The AO-OCT system at UC Davis has demonstrated the utility of this technology for microscopic, volumetric, in vivo retinal imaging. The current system uses an AOptix bimorph deformable mirror (DM) for low-order, high-stroke correction and a 140-actuator Boston Micromachines DM for high-order correction. Developments to improve performance or functionality of the instrument are on-going. Based on previous work in system characterization we have focused on improved AO control. We present preliminary results and remaining challenges for a newly implemented Fourier transform reconstructor (FTR). The previously reported error budget analysis is also reviewed and updated, with consideration of how to improve both the amount of residual error and the robustness of the system. Careful characterization of the AO system will lead to improved performance and inform the design of future systems.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 947762
- Report Number(s):
- LLNL-PROC-410449
Journal ID: ISSN 0277-786X; TRN: US200905%%256
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Conference
- Resource Relation:
- Journal Volume: 7209; Conference: Presented at: Photonics West, San Jose, CA, United States, Jan 24 - Jan 29, 2009
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUMM MECHANICS, GENERAL PHYSICS; 59 BASIC BIOLOGICAL SCIENCES; DESIGN; IN VIVO; MIRRORS; OPTICS; PERFORMANCE; RETINA; TOMOGRAPHY
Citation Formats
Evans, J, Zawadzki, R, Jones, S, Olivier, S, and Werner, J S. Performance of a MEMS-based AO-OCT system using Fourier Reconstruction. United States: N. p., 2009.
Web. doi:10.1117/12.808002.
Evans, J, Zawadzki, R, Jones, S, Olivier, S, & Werner, J S. Performance of a MEMS-based AO-OCT system using Fourier Reconstruction. United States. https://doi.org/10.1117/12.808002
Evans, J, Zawadzki, R, Jones, S, Olivier, S, and Werner, J S. 2009.
"Performance of a MEMS-based AO-OCT system using Fourier Reconstruction". United States. https://doi.org/10.1117/12.808002. https://www.osti.gov/servlets/purl/947762.
@article{osti_947762,
title = {Performance of a MEMS-based AO-OCT system using Fourier Reconstruction},
author = {Evans, J and Zawadzki, R and Jones, S and Olivier, S and Werner, J S},
abstractNote = {Adaptive optics (AO) and optical coherence tomography (OCT) are powerful imaging modalities that, when combined, can provide high-resolution (3.5 {micro}m isotropic), 3-D images of the retina. The AO-OCT system at UC Davis has demonstrated the utility of this technology for microscopic, volumetric, in vivo retinal imaging. The current system uses an AOptix bimorph deformable mirror (DM) for low-order, high-stroke correction and a 140-actuator Boston Micromachines DM for high-order correction. Developments to improve performance or functionality of the instrument are on-going. Based on previous work in system characterization we have focused on improved AO control. We present preliminary results and remaining challenges for a newly implemented Fourier transform reconstructor (FTR). The previously reported error budget analysis is also reviewed and updated, with consideration of how to improve both the amount of residual error and the robustness of the system. Careful characterization of the AO system will lead to improved performance and inform the design of future systems.},
doi = {10.1117/12.808002},
url = {https://www.osti.gov/biblio/947762},
journal = {},
issn = {0277-786X},
number = ,
volume = 7209,
place = {United States},
year = {Wed Jan 21 00:00:00 EST 2009},
month = {Wed Jan 21 00:00:00 EST 2009}
}