We present a novel, to our knowledge, fiber-based single-channel polarization-sensitive spectral interferometry system that provides depth-resolved measurement of polarization transformations of light reflected from a sample. Algebraic expressions for the Stokes parameters at the output of the interferometer are derived for light reflected from a birefringent sample by using the cross-spectral density function. By insertion of a fiber-optic spectral polarimetry instrument into the detection path of a common-path spectral interferometer, the full set of Stokes parameters of light reflected from a sample can be obtained with a single optical frequency scan. The methodology requires neither polarization-control components nor prior knowledge of the polarization state of light incident on the sample. The fiber-based single-channel polarization-sensitive spectral interferometer and analysis are demonstrated by measurement of phase retardation and fast-axis angle of a birefringent mica plate.
© 2006 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: September 2, 2005
Manuscript Accepted: November 17, 2005
Vol. 1, Iss. 7 Virtual Journal for Biomedical Optics
Eunha Kim and Thomas E. Milner, "Fiber-based single-channel polarization-sensitive spectral interferometry," J. Opt. Soc. Am. A 23, 1458-1467 (2006)