High-speed full range complex Fourier-domain optical coherence tomography using sinusoidal phase-modulating interferometry

Peng Bu; Xiangzhao Wang; Osami Sasaki; Xunbin Wei

doi:10.1117/12.756756

8 January 2008 High-speed full range complex Fourier-domain optical coherence tomography using sinusoidal phase-modulating interferometry

Peng Bu, Xiangzhao Wang, Osami Sasaki, Xunbin Wei

Author Affiliations +

Proceedings Volume 6826, Optics in Health Care and Biomedical Optics III; 682605 (2008) https://doi.org/10.1117/12.756756
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

High-speed full-range complex Fourier domain optical coherence tomography (FDOCT) using sinusoidal phase-modulating interferometry is proposed. A high-rate two-dimensional (2-D) CCD camera is used to record time-sequential sinusoidally phase-modulated 2-D spectral interferograms, from which the complex 2-D spectral interferograms corresponding to each frame of the 2-D CCD camera are extracted by Fourier transform method. By taking inverse Fourier transform of the complex spectral interferograms, full-range B-scan images free of the complex conjugate ambiguity as well as dc and autocorrelation noises are obtained at intervals of the frame period of the 2-D CCD camera. Time-sequential cross-sectional imaging of human skin ex vivo with the proposed method is demonstrated.

Citation Download Citation

Peng Bu, Xiangzhao Wang, Osami Sasaki, and Xunbin Wei "High-speed full range complex Fourier-domain optical coherence tomography using sinusoidal phase-modulating interferometry", Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 682605 (8 January 2008); https://doi.org/10.1117/12.756756

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