Depth encoded cross-polarized optical coherence tomography with polarization maintaining fiber

We developed a novel fiber-based minimalistic system for cross-polarization optical coherence tomography using polarization-maintaining fiber in the sample arm. A long section of polarization-maintaining fiber was placed in the sample arm which acted as a delay line. Co- and cross-polarized images appear at different depth positions within the image. Test measurements with a quarter-wave plate demonstrate the sensitivity of the system to the …