Inherent media dispersion compensation by FD-OCT

Alexandre R. Tumlinson; Bernd Hofer; Boris Považay; Amy Winkler; Wolfgang Drexler; Jennifer K. Barton

doi:10.1117/12.701019

7 February 2007 Inherent media dispersion compensation by FD-OCT

Alexandre R. Tumlinson, Bernd Hofer, Boris Považay, Amy Winkler, Wolfgang Drexler, Jennifer K. Barton

Proceedings Volume 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI; 64291C (2007) https://doi.org/10.1117/12.701019
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

Depth dependent broadening of the axial point spread function due to dispersion in the imaged media, and algorithms for postprocess correction have been previously described for both time domain and frequency domain optical coherence tomography. Homogeneous media dispersion artifacts disappear when frequency domain samples are uniformly spaced in circular wavenumber, as opposed to uniform sampling in optical frequency. In this paper, we explicate the source of this point spread broadening and simulate its magnitude in aqueous media. We conclude with a suggestion for interferometric k-triggering which accounts for dispersion in the media.

Citation Download Citation

Alexandre R. Tumlinson, Bernd Hofer, Boris Považay, Amy Winkler, Wolfgang Drexler, and Jennifer K. Barton "Inherent media dispersion compensation by FD-OCT", Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64291C (7 February 2007); https://doi.org/10.1117/12.701019

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KEYWORDS

Spatial frequencies

Dispersion

Transform theory

Imaging systems

Point spread functions

Spectroscopy

Interferometers

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