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首页> 外文期刊>Optics Letters >In vivo endoscopic optical coherence tomography by use of a rotational microelectromechanical system probe
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In vivo endoscopic optical coherence tomography by use of a rotational microelectromechanical system probe

机译：使用旋转微机电系统探针的体内内窥镜光学相干断层扫描

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摘要

A novel endoscopic optical coherence tomography probe was designed and constructed with a 1.9-mm micro-electromechanical system (MEMS) motor. The new MEMS endoscopic probe design eliminates the need to couple the rotational energy from the proximal to the distal end of the probe. Furthermore, the endoscopic probe's sheath and fiber have the advantages of having a much smaller diameter and being more flexible than traditional endoscopes since no reinforcement is needed to couple the rotational torque. At the distal end, a prism mounted on a micromotor deflects the light rays to create a transverse circular-scanning pathway. Because our MEMS scanner does not require the coupling of a rotational single-mode fiber, a high scanning speed is possible while eliminating unstable optical signals caused by nonuniform coupling.
机译：设计并使用1.9毫米微机电系统（MEMS）电机构造了新型内窥镜光学相干断层扫描探头。新的MEMS内窥镜探头设计无需将旋转能量从探头的近端耦合到远端。此外，内窥镜探头的外皮和纤维的优点是直径小得多，并且比传统内窥镜具有更大的柔韧性，因为不需要加强件来耦合旋转扭矩。在远端，安装在微电机上的棱镜使光线偏转，以产生横向圆形扫描路径。因为我们的MEMS扫描仪不需要耦合旋转的单模光纤，所以可以实现较高的扫描速度，同时消除了由不均匀耦合引起的不稳定的光信号。

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