Open AccessTwo-reference swept-source optical coherence tomography of high operation flexibility
Author(s) -
Ting-Ta Chi,
ChengHsun Wu,
Chen-Chin Liao,
Yi-Chou Tu,
YeanWoei Kiang,
C. C. Yang
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.028418
Subject(s) - optical coherence tomography , optics , beam splitter , tomography , imaging phantom , coherence (philosophical gambling strategy) , phase difference , optical tomography , physics , phase (matter) , reference beam , image processing , computer science , interferometry , laser , image (mathematics) , computer vision , quantum mechanics
The significantly less stringent operation of a two-reference swept-source optical coherence tomography (OCT) system for suppressing the mirror image is demonstrated based on the spatially localized image processing method. With this method, the phase difference between the two reference signals is not limited to 90 degrees. Based on the current experimental operation, the mirror image can be effectively suppressed as long as the phase difference is larger than 20 degrees. In other words, the adjustment of the beam splitter orientation for controlling the phase difference becomes much more flexible. Also, based on a phantom experiment, the combination the spatially localized mirror image suppression method with the two-reference OCT operation leads to the implementation of full-range optical Doppler tomography.