Complex ambiguity-free Fourier domain optical coherence tomography through transverse scanning
We introduce a simple and cheap method for phase-shifting Fourier domain optical coherence tomography (FDOCT) that does not need additional devices and can easily be implemented. A small beam offset at the fast beam-scanning mirror introduces a causal phase shift, which can be used for B-scan-based complex image reconstruction. We derive the conditions for optimal conjugate suppression and demonstrate the method on human skin in vivo for spectrometer-based FDOCT operating at 1300nm employing a handheld scanner.
Keywords: (110.4500) Imaging systems ; Optical coherence tomography ; (170.0170) Medical optics and biotechnology ; Medical optics and biotechnology ; (170.4500) Medical optics and biotechnology ; Optical coherence tomography
Originally published in Optics Letters 32, 3453-3455 (2007).
Record created on 2008-03-06, modified on 2016-08-08