Balanced detection spectral-domain optical coherence tomography with a single line-scan camera
Mingming Wan, Shanshan Liang, Xinyu Li, Zhenyu Duan, Jiebin Zou, Jun Chen, Jin Yuan, Jun Zhang
Abstract
This paper describes a balanced detection spectral-domain optical coherence tomography (BD-SD-OCT) system for suppressing autocorrelation (AC) artifacts and increasing the signal-to-noise ratio (SNR). The system employed three optical fiber couplers to generate two phase-opposed interference spectra that were acquired by a single line-scan camera simultaneously. When compared with conventional unbalanced detection SD-OCT systems, the developed BD-SD-OCT system improved the SNR by 5.4-6 dB and suppressed the AC term by 5-10 dB. The imaging quality of the BD-SD-OCT system was evaluated by in vivo imaging of human nail folds and retinas.
Topics & Concepts
Optical coherence tomographyOpticsImage qualityPhysicsGhost imagingPreclinical imagingCoherence (philosophical gambling strategy)Materials scienceComputer scienceArtificial intelligenceIn vivoImage (mathematics)Quantum mechanicsBiotechnologyBiologyOptical Coherence Tomography ApplicationsRetinal and Macular SurgeryGlaucoma and retinal disorders