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13 April 2005 One-shot-phase-shifting full-range Fourier domain optical coherence tomography by reference wavefront tilting
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Abstract
A novel optical scheme for a full range Fourier domain optical coherence tomography (FD-OCT) is presented. This method avoids a mechanical scan for phase-shifting (mechanical M-scan) which enables a full range FD-OCT. A tilting reference wavefront is used to make variable phase offset of spectral interferometric fringes. Several spectral fringes are detected by a two dimensional CCD camera simultaneously. One axis of the CCD camera is occupied with the optical spectral axis, and the other axis is employed for phase offset variation. A few spectral fringes are extracted and used for phase-shifting algorithm. The principle of this system is confirmed with a plane mirror sample.
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Shuichi Makita, Yoshiaki Yasuno, Takashi Endo, Gouki Aoki, Masahide Itoh, and Toyohiko Yatagai "One-shot-phase-shifting full-range Fourier domain optical coherence tomography by reference wavefront tilting", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); https://doi.org/10.1117/12.589141
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