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31 August 2011Labview programming for swept-source full-field optical coherence tomography
Full-field optical coherence tomography (FFOCT) acquires image data in parallel. It has a big advantage in high-speed
imaging because 2-dimensional mechanical raster scanning in the sample arm, which is essentially needed in a common
fiber-based OCT system, does not exist anymore. Swept-source FFOCT (SSFFOCT) further makes the system free of
depth scanning that significantly increases the operation speed. National Instrument's LabVIEW is a powerful tool to fast
develop optical-electronic systems which have motion/vision units, signal processing functions and easy-to-generate
Graphic User Interface (GUI). In this paper, we describe the design and implementation of Labview program prepared
for an SSFFOCT system. Basically, there are four modules of Labview programming in such a system: 1. Wavelength
sweeping control; 2. Synchronized image grabbing; 3. SSFFOCT signal processing; 4. 3-dimensional tomogram
displaying mode selection. A general graphic user interface is used to input the parameters and monitor all necessary data
and curves. The tomographic images can be displayed at any given cutting direction. More details and examples are
provided and discussed.