J Biomed Opt. 2011 Jul;16(7):070502. doi: 10.1117/1.3597721.
We present a phase fluctuation calibration method for polarization-sensitive swept-source optical coherence tomography (PS-SS-OCT) using continuous polarization modulation. The method uses a low-voltage broadband polarization modulator driven by a synchronized sinusoidal burst waveform rather than an asynchronous waveform, together with the removal of the global phases of the measured Jones matrices by the use of matrix normalization. This makes it possible to average the measured Jones matrices to remove the artifact due to the speckle noise of the signal in the sample without introducing auxiliary optical components into the sample arm. This method was validated on measurements of an equine tendon sample by the PS-SS-OCT system.
我们提出了一种基于连续偏振调制的用于偏振敏感扫频源光相干断层扫描（PS-SS-OCT）的相位波动校准方法。该方法使用由同步正弦突发波形驱动的低压宽带偏振调制器，而不是异步波形，并通过使用矩阵归一化去除测量琼斯矩阵的全局相位。这使得可以平均测量琼斯矩阵以消除由于样品中信号的散斑噪声引起的伪影，而无需在样品臂中引入辅助光学元件。该方法通过 PS-SS-OCT 系统对马腱样本的测量进行了验证。
