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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 9, Iss. 12 — Dec. 3, 2001
  • pp: 610–615

Numerical dispersion compensation for Partial Coherence Interferometry and Optical Coherence Tomography

A. F. Fercher, C. K. Hitzenberger, M. Sticker, R. Zawadzki, B. Karamata, and T. Lasser  »View Author Affiliations


Optics Express, Vol. 9, Issue 12, pp. 610-615 (2001)
http://dx.doi.org/10.1364/OE.9.000610


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Abstract

Dispersive samples introduce a wavelength dependent phase distortion to the probe beam. This leads to a noticeable loss of depth resolution in high resolution OCT using broadband light sources. The standard technique to avoid this consequence is to balance the dispersion of the sample by arranging a dispersive material in the reference arm. However, the impact of dispersion is depth dependent. A corresponding depth dependent dispersion balancing technique is diffcult to implement. Here we present a numerical dispersion compensation technique for Partial Coherence Interferometry (PCI) and Optical Coherence Tomography (OCT) based on numerical correlation of the depth scan signal with a depth variant kernel. It can be used a posteriori and provides depth dependent dispersion compensation. Examples of dispersion compensated depth scan signals obtained from microscope cover glasses are presented.

© Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Research Papers

History
Original Manuscript: September 6, 2001
Published: December 3, 2001

Citation
Adolf Fercher, Christoph Hitzenberger, Markus Sticker, Robert Zawadzki, Boris Karamata, and Theo Lasser, "Numerical dispersion compensation for Partial Coherence Interferometry and Optical Coherence Tomography," Opt. Express 9, 610-615 (2001)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-9-12-610


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References

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