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Proceedings Paper

Polarization-sensitive optical coherence tomography with decorrelated channels
Author(s): Haitham N. Zaatari; Nate J. Kemp; Taner Akkin; Henry Grady Rylander III; Thomas E. Milner
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Paper Abstract

We describe a Polarization Sensitive Optical Coherence Tomography (PS-OCT) system with de-correlated horizontal and vertical channels. Construction of PS-OCT depth-resolved images is achieved with a scanning bulk Michelson interferometer and a broadband TiAl2O3 femtosecond laser source. We de-correlate and delay horizontal and vertical channels using a birefringent crystal in the source path and calcite prism pairs in the sample and reference paths. Cross-correlation and phase changes between horizontal and vertical channels are measured at different reference-sample optical delays in correlated and de-correlated PS-OCT. PS-OCT with de-correlated (DPS-OCT) channels can broaden applications to include de-correlated Doppler imaging of blood flow and imaging the retinal nerve fiber layer with delayed channels. We achieve a differential delay of 0-400 microns between vertical and horizontal channels by translating the calcite prisms. DPS-OCT system design and experimental measurements are presented and discussed.

Paper Details

Date Published: 1 July 2004
PDF: 5 pages
Proc. SPIE 5316, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII, (1 July 2004); doi: 10.1117/12.531329
Show Author Affiliations
Haitham N. Zaatari, Univ. of Texas/Austin (United States)
Nate J. Kemp, Univ. of Texas/Austin (United States)
Taner Akkin, Univ. of Texas/Austin (United States)
Henry Grady Rylander III, Univ. of Texas/Austin (United States)
Thomas E. Milner, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 5316:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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