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Appl Opt. 2013 Feb 10;52(5):958-65. doi: 10.1364/AO.52.000958.

Full-range parallel Fourier-domain optical coherence tomography using a spatial carrier frequency.

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1
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Jiading District, Shanghai, China.

Abstract

We propose a method of parallel full-range Fourier-domain optical coherence tomography (FDOCT) that is capable of acquiring an artifacts-free B-scan image by a single shot of a two-dimensional (2D) CCD camera. This method is based on a spatial carrier technique in which a spatial carrier-frequency is instantaneously introduced into the 2D spectral interferogram registered in parallel FDOCT by using a grating-generated line-reference beam. The spatial-carrier-contained 2D spectral interferogram is processed through Fourier transformation to obtain a complex 2D spectral interferogram, from which a full-range B-scan tomogram is reconstructed. The principle of our method is confirmed by imaging a tropical fish eye's anterior chamber and a shrimp telson in vivo. The suppression ratio of the complex conjugate artifact can reach 36 dB.

PMID:
23400057
[Indexed for MEDLINE]
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