Light source spectra effects on optical coherence tomography A-scans

Document Type

Conference Proceeding

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Publisher

SPIE

School

School of Science

RAS ID

30725

Comments

Guan, A., Hinckley, S., & Richardson, S. (2019, December). Light source spectra effects on optical coherence tomography A-scans. In Biophotonics Australasia 2019. International Society for Optics and Photonics. https://doi.org/10.1117/12.2539595

Abstract

In this study, we have simulated the effect of light sources with different spectral output functions on the generation of A-scans in optical coherence tomography using a fundamental physics-based interferometric model. Many different source function were examined, and compared to a standard Gaussian source. These sources included truncated Gaussians, multiple Gaussians, other non-Gaussian, Lorentzian, square and triangular sources. Only the pure Gaussian source produced A-scans without false artefacts such as satellite peaks, that could produce misinterpretation of real OCT images that may be used for patient diagnosis. A triangular source produces the next best response with small extraneous peaks, whereas all other sources have significant false artefacts present in their A-scans. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

DOI

10.1117/12.2539595

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