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采用垂直腔面发射激光光源的高精度、高准确度超长距离扫频源光相干断层扫描技术。

High-precision, high-accuracy ultralong-range swept-source optical coherence tomography using vertical cavity surface emitting laser light source.

机构信息

Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

出版信息

Opt Lett. 2013 Mar 1;38(5):673-5. doi: 10.1364/OL.38.000673.

Abstract

We demonstrate ultralong-range swept-source optical coherence tomography (OCT) imaging using vertical cavity surface emitting laser technology. The ability to adjust laser parameters and high-speed acquisition enables imaging ranges from a few centimeters up to meters using the same instrument. We discuss the challenges of long-range OCT imaging. In vivo human-eye imaging and optical component characterization are presented. The precision and accuracy of OCT-based measurements are assessed and are important for ocular biometry and reproducible intraocular distance measurement before cataract surgery. Additionally, meter-range measurement of fiber length and multicentimeter-range imaging are reported. 3D visualization supports a class of industrial imaging applications of OCT.

摘要

我们展示了使用垂直腔面发射激光器技术的超长距离扫频光学相干断层扫描 (OCT) 成像。通过调整激光参数和高速采集的能力,同一仪器可实现从几厘米到几米的成像范围。我们讨论了长距离 OCT 成像的挑战。本文展示了体内人眼成像和光学元件特性。评估了基于 OCT 的测量的精度和准确性,这对于白内障手术前的眼生物测量和可重复的眼内距离测量很重要。此外,还报告了光纤长度的米级测量和多厘米级的成像。3D 可视化支持 OCT 的一类工业成像应用。

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