Three‐dimensional high‐speed optical coherence tomography system using KTN swept light source.

Three‐dimensional (3D) optical coherence tomography (3D‐OCT) has attracted attention for visualising complex structures in the biomedical field. In this reported work, a high‐speed 3D‐OCT system is developed, which is based on a high‐speed swept light source and a Mach‐Zehnder interferometer with a high‐speed photodetector. The light source, incorporating a KTa1–xNbxO3 electro‐optic deflector, operates at a repetition rate of 200 kHz and enables high‐speed data acquisition. As a preliminary study, images of a strawberry's surface have been obtained, two‐ and three‐dimensionally. The 3D‐OCT system has potential for the construction of a four‐dimensional OCT image to dynamically display 3D‐OCT images. [ABSTRACT FROM AUTHOR]