High-Speed Optical Coherence Tomography System Using a 200-kHz Swept Light Source with a KTN Deflector  

作　　者：Yuichi Okabe Yuzo Sasaki Masahiro Ueno Takashi Sakamoto Seiji Toyoda Junya Kobayashi Masato Ohmi 

机构地区：[1]Graduate School of Medicine, Course of Allied Health Science, Osaka University, Osaka, Japan [2]NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, Kanagawa, Japan

出　　处：《Optics and Photonics Journal》2013年第2期190-193,共4页光学与光子学期刊（英文）

摘　　要：We demonstrate a high-speed swept-source optical coherence tomography (SS-OCT) system, which is based on a high-speed swept light source and a Mach-Zehnder interferometer with a high-speed photodetector. The light source is an external-cavity laser tuned by a KTN electro-optic deflector, which exhibits a very fast response and large deflection. The scanning wavelength range is almost 80 nm up to 200 kHz with a ±400-V deflector driving voltage. The system acquires 1 mm × 1 mm images consisting of 200 × 200 pixels within few milliseconds. We present preliminary SS-OCT images of an in-vitro human nail and an in-vivo finger pad.We demonstrate a high-speed swept-source optical coherence tomography (SS-OCT) system, which is based on a high-speed swept light source and a Mach-Zehnder interferometer with a high-speed photodetector. The light source is an external-cavity laser tuned by a KTN electro-optic deflector, which exhibits a very fast response and large deflection. The scanning wavelength range is almost 80 nm up to 200 kHz with a ±400-V deflector driving voltage. The system acquires 1 mm × 1 mm images consisting of 200 × 200 pixels within few milliseconds. We present preliminary SS-OCT images of an in-vitro human nail and an in-vivo finger pad.

关 键 词：Swept-Source Optical COHERENCE TOMOGRAPHY KTN New Light SOURCE 

分 类 号：TN2[电子电信—物理电子学]