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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 14 — Jul. 15, 2010
  • pp: 2445–2447

Speckle reduction in optical coherence tomography by strain compounding

Brendan F. Kennedy, Timothy R. Hillman, Andrea Curatolo, and David D. Sampson  »View Author Affiliations


Optics Letters, Vol. 35, Issue 14, pp. 2445-2447 (2010)
http://dx.doi.org/10.1364/OL.35.002445


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Abstract

We present a speckle reduction technique for optical coherence tomography based on strain compounding. Decorrelation is introduced between B-scans by altering the sample’s strain. A theoretical description of the technique, based on a transfer-function formalism, and experimental results on silicone phantoms are presented. Nearly complete decorrelation between successive B-scan speckle patterns was observed for a variation in strain of 0.045. Strain compounding by averaging nine B-scans, with 0.003 strain increments between them, resulted in a 1.5-fold reduction in speckle contrast ratio.

© 2010 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.4500) Imaging systems : Optical coherence tomography
(170.3880) Medical optics and biotechnology : Medical and biological imaging

ToC Category:
Imaging Systems

History
Original Manuscript: April 12, 2010
Revised Manuscript: June 9, 2010
Manuscript Accepted: June 14, 2010
Published: July 13, 2010

Virtual Issues
Vol. 5, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Brendan F. Kennedy, Timothy R. Hillman, Andrea Curatolo, and David D. Sampson, "Speckle reduction in optical coherence tomography by strain compounding," Opt. Lett. 35, 2445-2447 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-14-2445

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» Media 1: AVI (1147 KB)     

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