Abstract
Adaptive optics (AO) and optical coherence tomography (OCT) are powerful imaging modalities that, when combined, can provide high-resolution (3.5 μm 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.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 7209 |
| DOIs | |
| State | Published - 2009 |
| Event | MEMS Adaptive Optics III - San Jose, CA, United States Duration: Jan 27 2009 → Jan 29 2009 |
Other
| Other | MEMS Adaptive Optics III |
|---|---|
| Country | United States |
| City | San Jose, CA |
| Period | 1/27/09 → 1/29/09 |
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Keywords
- Adaptive Optics
- MEMS deformable mirror
- Optical coherence tomography
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Performance of a MEMS-based AO-OCT system using Fourier reconstruction. / Evans, Julia W.; Zawadzki, Robert; Jones, Steve; Olivier, Scot; Werner, John S.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7209 2009. 720905.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Performance of a MEMS-based AO-OCT system using Fourier reconstruction
AU - Evans, Julia W.
AU - Zawadzki, Robert
AU - Jones, Steve
AU - Olivier, Scot
AU - Werner, John S
PY - 2009
Y1 - 2009
N2 - Adaptive optics (AO) and optical coherence tomography (OCT) are powerful imaging modalities that, when combined, can provide high-resolution (3.5 μm 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.
AB - Adaptive optics (AO) and optical coherence tomography (OCT) are powerful imaging modalities that, when combined, can provide high-resolution (3.5 μm 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.
KW - Adaptive Optics
KW - MEMS deformable mirror
KW - Optical coherence tomography
UR - http://www.scopus.com/inward/record.url?scp=67649159309&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649159309&partnerID=8YFLogxK
U2 - 10.1117/12.808002
DO - 10.1117/12.808002
M3 - Conference contribution
SN - 9780819474551
VL - 7209
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -