Resolution Improvement with Dispersion Manipulation and a Retrieval Algorithm in Optical Coherence Tomography
Resource
Applied Optics 42 (2): 227-234
Journal
Applied Optics
Journal Volume
42
Journal Issue
2
Pages
227-234
Date Issued
2003
Date
2003
Author(s)
Abstract
We propose and demonstrate what is to our knowledge a novel technique of improving the spatial resolution of an optical coherence tomography (OCT) system given a non-Gaussian light source spectrum. By using dispersive materials in the reference arm of the OCT system, the resultant dispersion variation led to a full-width at half maximum (FWHM) of the interference fringe envelope smaller than the Fourier transform-limited value of a Gaussian spectral shape with the same spectral FWHM, at the expense of significant tails. The effects of the tails, which would blur the OCT images, were tremendously reduced with a retrieval algorithm. Simulation results and processed OCT scanning images have shown the capability of the proposed technique. © 2003 Optical Society of America.
Other Subjects
Algorithms; Computer simulation; Fourier transforms; Signal processing; Tomography; Scanning images; Coherent light
File(s)![Thumbnail Image]()
Loading...
Name
23.pdf
Size
753.88 KB
Format
Adobe PDF
Checksum
(MD5):164391fc6c38aa8f00c953baeacf85e2