Götzinger Erich, Pircher Michael, Leitgeb Rainer, Hitzenberger Christoph
Opt Express. 2005 Jan 24;13(2):583-94. doi: 10.1364/opex.13.000583.
We present a high speed full range spectral domain optical coherence tomography system. By inserting a phase modulator into the reference arm and recording of every other spectrum with a 90 degrees phase shift (introduced by the phase modulator) we are able to distinguish between negative and positive optical path differences with respect to the reference mirror. A modified two-frame algorithm eliminates the problem of suppressing symmetric structure terms in the final image. To demonstrate the performance of our method we present images of the anterior chamber of the human eye in vivo recorded with an A-scan rate of 10000 depth profiles per second.
我们展示了一种高速全量程光谱域光学相干断层扫描系统。通过在参考臂中插入一个相位调制器，并记录每隔一个具有90度相移（由相位调制器引入）的光谱，我们能够区分相对于参考镜的负和正光程差。一种改进的双帧算法消除了在最终图像中抑制对称结构项的问题。为了证明我们方法的性能，我们展示了以每秒10000个深度剖面的A扫描速率在体内记录的人眼前房图像。
