We developed high-speed time-domain (TD) en face optical coherence tomography\n(OCT) system using KTN optical beam deflector. The KTN optical\nbeam deflector operates at a high repetition rate of 200 kHz with a fairly large\nbeam deflection angle. We proposed a high-speed en face OCT system that\nused a KTN optical deflector as the sample beam scanning. In the experiment,\nwe obtained en face OCT images of human fingerprint with a frame rate of\n800 fps, which is the fastest speed obtained by a TD-OCT imaging. Furthermore,\na 3D-OCT image was also obtained at 0.2 s (=5 volumes/s) by our imaging\nsystem.
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