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Calibration-free time-stretch optical coherence tomography with large imaging depth

机译:无校准时间拉伸光学相干性断层扫描,具有大的成像深度

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摘要

We demonstrate a calibration-free time-stretch optical coherence tomography (TS-OCT), based on an optical higher order dispersion compensation scheme, which substitutes the digital calibration with optical dispersion compensation. As a result, the acquired raw data can directly perform the Fourier transform, and data processing time is greatly reduced by 82%, compared with the digital calibration. Moreover, because of the high-sensitivity and calibration free characteristics, the high-order dispersion compensation-based TS-OCT can increase sensitivity roll-off by 2.6 times to 6.91 mm/dB and effective imaging depth by 14.2% to 16 mm. The in vivo biological tissue imaging has been demonstrated, with the single-shot A-scan rate approaching 19 MHz. This higher order dispersion compensation scheme could provide a promising solution for the TS-OCT system to realize 3D imaging in real time and enhanced imaging quality. (C) 2019 Optical Society of America
机译:我们展示了一种基于光学高阶色散补偿方案的无校准时间拉伸光学相干断层扫描(TS-OCT),其用光学色散补偿替换数字校准。 结果,与数字校准相比,所获取的原始数据可以直接执行傅立叶变换,数据处理时间大大降低了82%。 此外,由于高灵敏度和无校准特性,基于高阶色散补偿的TS-OCT可以将敏感性滚降增加2.6倍至6.91mm / dB,有效的成像深度为14.2%至16mm。 已经证明了体内生物组织成像,用单次扫描速率接近19 MHz。 这种更高阶的色散补偿方案可以为TS-OCT系统提供有希望的解决方案,以实时实现3D成像,并增强成像质量。 (c)2019年光学学会

著录项

  • 来源
    《Optics Letters》 |2019年第17期|共4页
  • 作者单位

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

    Huazhong Univ Sci &

    Technol Wuhan Natl Lab Optoelect Wuhan 430074 Hubei Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

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