title: Polarization-sensitive optical coherence tomography using continuous polarization modulation with arbitrary phase modulation amplitude.
abstract: We demonstrate theoretically and experimentally that the phase retardance and relative optic-axis orientation of a sample can be calculated without prior knowledge of the actual value of the phase modulation amplitude when using a polarization-sensitive optical coherence tomography system based on continuous polarization modulation (CPM-PS-OCT). We also demonstrate that the sample Jones matrix can be calculated at any values of the phase modulation amplitude in a reasonable range depending on the system effective signal-to-noise ratio. This has fundamental importance for the development of clinical systems by simplifying the polarization modulator drive instrumentation and eliminating its calibration procedure. This was validated on measurements of a three-quarter waveplate and an equine tendon sample by a fiber-based swept-source CPM-PS-OCT system.
authors.forename: Zenghai
authors.initials: Z
authors.lastname: Lu
authors.forename: Deepa K
authors.initials: DK
authors.lastname: Kasaragod
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Matcher
mesh_terms: D000818:Animals; D002138:Calibration; D006736:Horses; D008962:Models, Theoretical; D015203:Reproducibility of Results; D059629:Signal-To-Noise Ratio; D013710:Tendons / Q000737:chemistry; D041623:Tomography, Optical Coherence / Q000379:methods*