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Proceedings Paper

Optical coherence tomography based on high-speed scanning MEMS mirror
Author(s): Woonggyu Jung; Daniel T. McCormick; Jun Zhang; Norman C. Tien; Zhongping Chen
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Paper Abstract

An optical coherence tomography (OCT) system based on a high-speed microelectromechanical system (MEMS) mirror is presented. This scanning mirror has high-speed performance because it was actuated by vertical comb drive. The size of mirror was 600 mm x 600 mm and the resonant frequencies were between 3.5 kHz to 8 kHz. In the test of scanner itself, it was operated linearly and scanned up to 30 degree angle. The MEMS mirror also provides 2-axis scanning while occupying a very small volume with extremely low power consumption. In our study, it was integrated with conventional fiber based OCT system. Via 2-axis lateral scanning, combined with an axial scan, a volume (2 mm x 2 mm x 1.4 mm) image of tissue, including a cancerous region, from a hamster cheek pouch was obtained. The axial and lateral resolution of images are 10 mm and about 20 mm respectively.

Paper Details

Date Published: 13 April 2005
PDF: 7 pages
Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); doi: 10.1117/12.592872
Show Author Affiliations
Woonggyu Jung, Univ. of California/Irvine (United States)
Daniel T. McCormick, Univ. of California/Berkeley (United States)
Univ. of California/Davis (United States)
Jun Zhang, Univ. of California/Irvine (United States)
Norman C. Tien, Univ. of California/Berkeley (United States)
Zhongping Chen, Univ. of California/Irvine (United States)

Published in SPIE Proceedings Vol. 5690:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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