High-Speed Time-Domain En Face Optical Coherence Tomography System Using KTN Optical Beam Deflector

• 作者: Jun Miyazu Masato Ohmi Seiji Toyoda Tadashi Sakamoto Yusuke Shinya
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 医学
• 关键词: OPTICAL Coherence Tomography EN FACE OCT KTN OPTICAL Beam DEFLECTOR
• 年，卷（期）: 2019,（5）
• 页码范围: 53-59
• 页数: 7页
• 分类号: R5

摘要

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.