Micromachined array tip for multifocus fiber-based optical coherence tomography

Abstract

High-resolution optical coherence tomography demands a large detector bandwidth and a high numerical aperture for real-time imaging, which is difficult to achieve over a large imaging depth. To resolve these conflicting requirements we propose a novel multifocus fiber-based optical coherence tomography system with a micromachined array tip. We demonstrate the fabrication of a prototype four-channel tip that maintains a $9–14‐\mathit{\mu }\mathrm{m}$ spot diameter with more than $500 \mathit{\mu }\mathrm{m}$ of imaging depth. Images of a resolution target and a human tooth were obtained with this tip by use of a four-channel cascaded Michelson fiber-optic interferometer, scanned simultaneously at 8 kHz with geometric power distribution across the four channels.

© 2004 Optical Society of America

Piezoelectric-transducer-based miniature catheter for ultrahigh-speed endoscopic optical coherence tomography

Tsung-Han Tsai, Benjamin Potsaid, Martin F. Kraus, Chao Zhou, Yuankai K. Tao, Joachim Hornegger, and James G. Fujimoto
Biomed. Opt. Express 2(8) 2438-2448 (2011)

Parallel optical coherence tomography system

Yuan Luo, Lina J. Arauz, Jose E. Castillo, Jennifer K. Barton, and Raymond K. Kostuk
Appl. Opt. 46(34) 8291-8297 (2007)

Forward-viewing resonant fiber-optic scanning endoscope of appropriate scanning speed for 3D OCT imaging

Li Huo, Jiefeng Xi, Yicong Wu, and Xingde Li
Opt. Express 18(14) 14375-14384 (2010)

Endoscopic optical coherence tomography: technologies and clinical applications [Invited]

Michalina J. Gora, Melissa J. Suter, Guillermo J. Tearney, and Xingde Li
Biomed. Opt. Express 8(5) 2405-2444 (2017)

Endoscopic forward-viewing optical coherence tomography and angiography with MHz swept source

Kaicheng Liang, Osman O. Ahsen, Zhao Wang, Hsiang-Chieh Lee, Wenxuan Liang, Benjamin M. Potsaid, Tsung-Han Tsai, Michael G. Giacomelli, Vijaysekhar Jayaraman, Hiroshi Mashimo, Xingde Li, and James G. Fujimoto
Opt. Lett. 42(16) 3193-3196 (2017)