Light source spectra effects on optical coherence tomography A-scans
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.
Keywords
Gaussian distribution, Light sources, Photonics, Tomography, Best response, Fundamental physics, Gaussian sources, Interferometric models, Output functions, Patient diagnosis, Satellite peaks, Source functions, Optical tomography
Document Type
Conference Proceeding
Date of Publication
1-1-2019
Publication Title
Proceedings of SPIE - The International Society for Optical Engineering
Publisher
SPIE
School
School of Science
RAS ID
30725
Copyright
subscription content
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