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Proceedings Paper

Robust complex conjugate artifact removal in OCT using circularly polarized light as reference (Conference Presentation)
Author(s): Xinyu Liu; Xinwen Yao; Leopold Schmetterer; Bingyao Tan

Paper Abstract

In Fourier domain OCT, the depth profile is mirrored about the zero delay, limiting the imaging depth to half of the entire ranging space. We present a novel configuration for OCT to robustly remove the complex conjugate artifact. Our method utilizes the intrinsic delay of circularly polarized light in two polarization channels, using only passive broadband polarization optics and conventional polarization diversity detection unit. Our method is immune to sample motion and adds no restrictions to source bandwidth, imaging speed or computational load. 45 dB suppression of the mirror artifact is demonstrated by an SSOCT with some in-vivo images.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11228, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV, 112281C (9 March 2020); doi: 10.1117/12.2548867
Show Author Affiliations
Xinyu Liu, Singapore Eye Research Institute (Singapore)
Xinwen Yao, Singapore Eye Research Institute (Singapore)
Leopold Schmetterer, Singapore Eye Research Institute (Singapore)
Bingyao Tan, Singapore Eye Research Institute (Singapore)

Published in SPIE Proceedings Vol. 11228:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV
Joseph A. Izatt; James G. Fujimoto, Editor(s)

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