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access icon free Three-dimensional high-speed optical coherence tomography system using KTN swept light source

© The Institution of Engineering and Technology
Received 26/04/2013, Published
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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–x Nb x O3 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.

Inspec keywords: high-speed optical techniques; photodetectors; data acquisition; biomedical optical imaging; electro-optical devices; optical tomography; Mach-Zehnder interferometers; light sources; optical deflectors

Other keywords: high-speed photodetector; high-speed data acquisition; KTN swept light source; electrooptic deflector; high-speed swept light source; Mach–Zehnder interferometer; strawberry surface; three-dimensional high-speed optical coherence tomography system; four-dimensional optical coherence tomography image; biomedical field

Subjects: Electro-optical devices; Patient diagnostic methods and instrumentation; Optical and laser radiation (biomedical imaging/measurement); Light sources; Data gathering, processing, and recording, data displays including digital techniques; Optical and laser radiation (medical uses); Photodetectors; Ultrafast optical techniques; Data acquisition systems

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