7 February 2007 New approach to cross-polarized optical coherence tomography based on orthogonal arbitrarily polarized modes
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Abstract
A novel cross-polarized optical coherence tomography (CP-OCT) system based on standard isotropic single-mode fiber has been developed. We exploit the property of an arbitrary pair of orthogonal waves propagating in a single-mode fiber to maintain their orthogonality in the absence of anisotropy losses, regardless of the induced phase anisotropy. The well-known isotropic fiber based OCT scheme that commonly comprises an optical probe with a Fizeau interferometer and a compensating Michelson interferometer with Faraday mirrors is modified. We introduce an additional optical element to form the initial radiation as two mutually time-delayed and strictly orthogonal polarized waves. The suggested scheme allows reaching very low level of cross talk in co and cross-polarized images.
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G. V. Gelikonov, G. V. Gelikonov, V. M. Gelikonov, V. M. Gelikonov, } "New approach to cross-polarized optical coherence tomography based on orthogonal arbitrarily polarized modes", Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64290L (7 February 2007); doi: 10.1117/12.704015; https://doi.org/10.1117/12.704015
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