Forward imaging OCT endoscopic catheter based on MEMS lens scanning

被引：52

作者：

Park, Hyeon-Cheol ^{[1
]}

Song, Cheol ^{[1
]}

Kang, Minseok ^{[1
]}

Jeong, Yong ^{[1
]}

Jeong, Ki-Hun ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Bio & Brain Engn, Taejon 305701, South Korea

来源：

OPTICS LETTERS | 2012年 / 37卷 / 13期

基金：

新加坡国家研究基金会;

关键词：

OPTICAL COHERENCE TOMOGRAPHY; MIRROR; BIOPSY; SPEED;

D O I：

10.1364/OL.37.002673

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This Letter reports a fully packaged microelectromechanical system (MEMS) endoscopic catheter for forward imaging optical coherence tomography (OCT). Two-dimensional optical scanning of Lissajous patterns was realized by the orthogonal movement of two commercial aspherical glass lenses laterally mounted on two resonating electrostatic MEMS microstages at low operating voltages. The MEMS lens scanner was integrated on a printed circuit board and packaged with an aluminum housing, a gradient index fiber collimator, and an objective lens. A home-built spectral-domain OCT system with 60 kHz A-line acquisition rate was combined with the endoscopic MEMS catheter. Three-dimensional images of 256 x 256 x 995 voxels were directly reconstructed by mapping the A-line datasets along the Lissajous patterns. The endoscopic catheter can provide a new direction for forward endoscopic OCT imaging. (C) 2012 Optical Society of America

引用

页码：2673 / 2675

页数：3

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