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首页> 外文期刊>Applied optics >Balanced detection spectral domain optical coherence tomography with a multiline single camera for signal-to-noise ratio enhancement
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Balanced detection spectral domain optical coherence tomography with a multiline single camera for signal-to-noise ratio enhancement

机译：平衡检测光谱域光学相干层析成像与多线单相机，以提高信噪比

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摘要

In this study, the use and advantages of balanced detection (BD) in spectral domain optical coherence tomography (SD-OCT) are demonstrated. A-scans are calculated as a combination of two phase-opposed interferometric spectra acquired simultaneously by using a multiline single camera spectrometer. Not only does this system suppress artifacts due to autocorrelation, but also the signal of interest is increased by a factor of 2 as experimentally verified. Our BD-based SD-OCT gives a signal-to-noise ratio improvement of 8-14 dB for the peak within 1 mm compared to standard SD-OCT using a single detection scheme. This method is validated by experimental measurement of a glass plate.
机译：在这项研究中，证明了平衡检测（BD）在光谱域光学相干断层扫描（SD-OCT）中的用途和优势。通过使用多线单相机光谱仪同时获取的两个相位相反的干涉光谱的组合来计算A扫描。该系统不仅抑制了由于自相关引起的伪影，而且感兴趣的信号也增加了2倍（经实验验证）。与使用单一检测方案的标准SD-OCT相比，基于BD的SD-OCT对于1 mm内的峰，信噪比提高了8-14 dB。通过玻璃板的实验测量验证了该方法。

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