TITLE:
High-Speed Time-Domain En Face Optical Coherence Tomography System Using KTN Optical Beam Deflector
AUTHORS:
Masato Ohmi, Yusuke Shinya, Jun Miyazu, Seiji Toyoda, Tadashi Sakamoto
KEYWORDS:
Optical Coherence Tomography, En Face OCT, KTN, Optical Beam Deflector
JOURNAL NAME:
Optics and Photonics Journal,
Vol.9 No.5,
May
10,
2019
ABSTRACT: We developed high-speed time-domain (TD) en face optical coherence tomography (OCT) system using KTN optical beam deflector. The KTN optical beam deflector operates at a high repetition rate of 200 kHz with a fairly large beam deflection angle. We proposed a high-speed en face OCT system that used a KTN optical deflector as the sample beam scanning. In the experiment, we obtained en face OCT images of human fingerprint with a frame rate of 800 fps, which is the fastest speed obtained by a TD-OCT imaging. Furthermore, a 3D-OCT image was also obtained at 0.2 s (=5 volumes/s) by our imaging system.