Moon Sucbei, Miao Yusi, Chen Zhongping
Opt Lett. 2019 Jun 15;44(12):3150-3153. doi: 10.1364/OL.44.003150.
We present a very simple method of constructing a polarization-sensitive optical coherence tomography (PS-OCT) system. An ordinary fiber-based swept-source OCT system was reconfigured for PS-OCT by adding a long section of polarization-maintaining fiber in the sample arm. Two polarization modes of a large group-delay difference formed spatially distinguished polarization channels. The depth-encoded information on the polarization states was retrieved by an amplitude-based analysis. We found that our method provides an economic scheme of PS-OCT. It demonstrates that an ordinary OCT system can be easily reconfigured for PS-OCT imaging if it has sufficient margins in the imaging range.
我们提出了一种构建偏振敏感光学相干断层扫描（PS-OCT）系统的非常简单的方法。通过在样品臂中添加一段长的保偏光纤，将一个普通的基于光纤的扫频源OCT系统重新配置用于PS-OCT。具有大群时延差的两个偏振模式形成了空间上可区分的偏振通道。通过基于幅度的分析来检索关于偏振态的深度编码信息。我们发现我们的方法提供了一种经济的PS-OCT方案。这表明，如果一个普通的OCT系统在成像范围内有足够的余量，那么它可以很容易地重新配置用于PS-OCT成像。
