Rapid-scanning forward-imaging miniature endoscope for real-time optical coherence tomography
Rapid-scanning forward-imaging miniature endoscope for real-time optical coherence tomography
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DOI：
10.1364/ol.29.001763
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发表时间：
2004-08-01
期刊：
影响因子：
3.6
通讯作者：
Li, XD
中科院分区：
文献类型：
--
作者：
Liu, XM;Cobb, MJ;Li, XD
我们研制了一种微型内窥镜，该内窥镜能够快速横向扫描，适用于实时正向成像光学相干层析成像(OCT)。内窥镜的外径为2.4 mm，由微型管状锆钛酸铅(PZT)致动器、单模光纤悬臂和渐变折射率透镜组成。当光纤悬臂梁与PZT驱动器共振时，实现了2.8 kHz的快速横向扫描。这使得OCT成像可以通过先进行快速横向光束扫描，然后再进行慢深度扫描来执行，这与传统的OCT成像序列不同。演示了内窥镜在新的图像采集序列中以6帧/S的速度进行实时OCT成像。(C)2004年美国光学学会。
We developed a miniature endoscope that is capable of rapid lateral scanning and is suitable for real-time forward-imaging optical coherence tomography (OCT). The endoscope has an outer diameter of 2.4 mm, consisting of a miniature tubular lead zirconate titanate (PZT) actuator, a single-mode fiber-optic cantilever, and a graded-index lens. Rapid lateral scanning at 2.8 kHz is achieved when the fiber-optic cantilever is resonated with the PZT actuator. This allows OCT imaging to be performed by fast lateral beam scanning followed by slow depth scanning, which is different from the conventional OCT imaging sequence. Real-time OCT imaging with the endoscope operated in the new image acquisition sequence at 6 frames/s is demonstrated. (C) 2004 Optical Society of America.