Polarization-maintaining fiber-based optical coherence tomography for polarization-sensitive measurements

Muhammad K. Al-Qaisi, Taner Akkin

Research output: Contribution to journalConference articlepeer-review

Abstract

We present a polarization-maintaining (PM) fiber based optical coherence tomography system for polarizationsensitive and phase-sensitive measurements. Using a single detector, a single depth scan accurately yields retardance and polarization-insensitive reflectivity information along an A-line. Interference patterns on the orthogonal polarization channels are frequency multiplexed and extracted by digital band-pass filters. Images are insensitive to sample rotation in plane perpendicular to ranging. The use of PM-fibers allows direct calculation of birefringence without correcting the polarization transformations known in single-mode non-PM fibers. The system can be configured for differential phase measurements with minor modifications. In this case, a dual detector setup in the detection arm is used, and frequency multiplexing is not utilized.

Original languageEnglish (US)
Article number716819
JournalProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7168
DOIs
StatePublished - 2009
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIII - San Jose, CA, United States
Duration: Jan 26 2009Jan 28 2009

Keywords

  • Differential phase
  • Polarization-maintaining fiber
  • Polarization-sensitive optical coherence tomography

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