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Title: Signal-to-noise ratio enhanced spectral domain optical coherence tomography with dual-balanced detection
Authors: Bo, En
Liu, Xinyu
Liu, Linbo
Keywords: Optical and Biomedical Imaging
Optical Coherence Tomography
DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2016
Source: Bo, E., Liu, X., & Liu, L. (2016). Signal-to-noise ratio enhanced spectral domain optical coherence tomography with dual-balanced detection. Procedia Engineering, 140, 140-143. doi:10.1016/j.proeng.2015.07.358
Series/Report no.: Procedia Engineering
Abstract: Spectral domain optical coherence tomography (SD-OCT) with dual-balanced detection (DBD) for signal-to-noise ratio (SNR) enhancement is developed. The dual-balanced detection in the SD-OCT system inherently achieves two-fold increase of the interested signal amplitude, minimizes the common background noise and suppresses artifacts by combining two phase-opposed interferometric spectra obtained simultaneously in comparison to unbalanced detection configuration, resulting in a significant SNR increase and dc elimination performance. Two interferometric spectrum were captured using a dual-line CCD through the same spectrometer optics. This new design is of lower cost compared with the dual CCD design. The feasibility and validity of this SD-OCT system with dual-balanced detection are demonstrated by experimental measurement of a 95% reflector.
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2015.07.358
Rights: © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
SCBE Journal Articles

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