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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 6 — Apr. 8, 2010

Improvement in dynamic range limitation of swept source optical coherence tomography by true logarithmic amplification

Bin Liu, Ehsan Azimi, and Mark E. Brezinski  »View Author Affiliations


JOSA A, Vol. 27, Issue 3, pp. 404-414 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000404


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Abstract

We previously demonstrated, with both theoretical and experimental studies, the dynamic range limitation with spectral domain optical coherence tomography (OCT) relative to time domain OCT. A significant portion of this limitation was due to the difference of analog/digital conversion. In this paper, a new method of true logarithmic amplification is discussed theoretically and tested experimentally to increase the dynamic range of a swept source OCT. With the current experimental setup, an increase of the dynamic range by about 6 dB was obtained.

© 2010 Optical Society of America

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: June 11, 2009
Revised Manuscript: December 18, 2009
Manuscript Accepted: December 29, 2009
Published: February 11, 2010

Virtual Issues
Vol. 5, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Bin Liu, Ehsan Azimi, and Mark E. Brezinski, "Improvement in dynamic range limitation of swept source optical coherence tomography by true logarithmic amplification," J. Opt. Soc. Am. A 27, 404-414 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-27-3-404

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