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中文摘要：
研制了扫频光学相干层析技术（SS-OCT）系统。该系统基于快速扫频激光光源，将轴向扫描频率由原来时域光学相干层析技术（OCT）系统的500Hz提高到20kHz。采用了基于OCT系统本身的预标定方法，实现了波数空间的线性校正。针对扫频光源光谱的非高斯型分布，对干涉光谱实施了基于窗口函数的光谱整形。对于干涉光谱中的直流项和自相关项，除了采用平衡探测共模抑制外，还运用了减除平均值的软件处理方法。系统纵向分辨率14um，横向分辨率12um，在空气介质中的成像深度3．9mm，利用研制的SS-OCT系统，成功实现了手指组织样品的快速OCT成像。
英文摘要：
The self developed swept source optical coherence tomography （SS-OCT） system is reported. Based on a high speed scanning laser source, the system realizes high speed A-scan rate of 20 kHz from 500 Hz A-scan rate of time-domain OCT. To realize linear calibration of wave number space, a pre-calibration method based on the SS-OCT system is used. Because of the non-Gaussian spectrum output of the swept source, a method based on window function is used for spectrum reshaping in the spectrum domain. To eliminate the direct current（DC） and autocorrelation term in the interference spectrum, the common-rejection of balanced detection, and a software method of subtract the mean value were used. The axial and lateral resolution of the SS-OCT system achieves 14 um and 12 um, respectively. The ranging depth of the SS-OCT achieves 3. 9 mm. High speed optical coherence tomography images of finger-pad organism using the SS-OCT system wera obtained.
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