Experiment Research on Spectral-Domain Optical Coherence Tomography

陈玉平; 赵宏; 杨琦; 王昭; 张璐

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Experiment Research on Spectral-Domain Optical Coherence Tomography

更新时间：2025-12-08

- Experiment Research on Spectral-Domain Optical Coherence Tomography
- Vol. 42, Issue 7, Pages: 815-817+912(2008)
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O439;TH744.3
- Online First：10 July 2008，
  
  Published：2008
- 稿件说明：
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陈玉平, 赵宏, 杨琦, et al. Experiment Research on Spectral-Domain Optical Coherence Tomography[J]. 2008, 42(7): 815-817+912.
DOI：

陈玉平, 赵宏, 杨琦, et al. Experiment Research on Spectral-Domain Optical Coherence Tomography[J]. 2008, 42(7): 815-817+912. DOI：

摘要

为改善光学相干层析成像(OCT)技术图像的获取速度和灵敏度

搭建了一套基于光谱干涉法的谱域光学相干层析成像系统(SD-OCT).该系统采用宽带光源照明

通过光纤迈克尔逊干涉仪产生物体的干涉图形并被光谱仪采集

物体内部结构图像则由干涉图形的傅里叶变换获得.研究表明

SD-OCT的数据获取速度比传统的OCT系统提高了将近40倍

达到了16 000/s的轴向扫描速率

其灵敏度也改善了20～30 dB.因此

SD-OCT 可实现工程和生物材料内部结构的实时三维图像重构.

Abstract

To improve the image acquisition rate and sensitivity of optical coherence tomography(OCT)technique

a spectral-domain optical coherence tomography(SD-OCT)system based on a spectral interferometric is constructed

where a broadband light source is chosen as the illumination source and a Michelson fiber interferometer is employed to generate interference pattern of object collected by a spectrometer. The object inner structure is obtained from the interference pattern by a Fourier transform. It is theoretically stated and experimentally verified that SD-OCT system outperforms the conventional OCT system in acquisition rate and sensitivity. The acquisition rate gets 16 000 axial scans per second and 40 times the conventional OCT; the sensitivity is enhanced by 20-30 dB. As a result

the SD-OCT system enables to realize near real time three dimensional imaging reconstructions of internal structure of engineering and biological materials.

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references

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