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Proceedings Paper

Piezoelectric transducer based miniature catheter for ultrahigh speed endoscopic optical coherence tomography
Author(s): Tsung-Han Tsai; Benjamin M. Potsaid; Martin Kraus; Jonathan J. Liu; Chao Zhou; Joachim Hornegger; James G. Fujimoto
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Paper Abstract

We developed a piezoelectric transducer (PZT) based miniature catheter with an outer diameter of 3 mm for ultrahigh speed endoscopic optical coherence tomography (OCT) using Fourier domain modelocked (FDML) laser at a 480 kHz axial scan rate. The miniaturized PZT bender actuates a fiber to provide high scanning speed. The side-viewing probe can be pulled back for a long distance to acquire three-dimensional (3D) dataset covering a large area on the specimen. Operating with a high speed data acquisition (DAQ) system, OCT imaging with 6.5 mm imaging range, 10 μm axial resolution, 20 μm lateral resolution, and frame rate of 480 frames per second (fps) is demonstrated.

Paper Details

Date Published: 11 February 2011
PDF: 6 pages
Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788919 (11 February 2011); doi: 10.1117/12.875815
Show Author Affiliations
Tsung-Han Tsai, Massachusetts Institute of Technology (United States)
Benjamin M. Potsaid, Massachusetts Institute of Technology (United States)
Thorlabs Inc. (United States)
Martin Kraus, Massachusetts Institute of Technology (United States)
Univ. Erlangen-Nurnberg (Germany)
Jonathan J. Liu, Massachusetts Institute of Technology (United States)
Chao Zhou, Massachusetts Institute of Technology (United States)
Joachim Hornegger, Univ. Erlangen-Nurnberg (Germany)
James G. Fujimoto, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7889:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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