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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 20 — Oct. 4, 2004
  • pp: 4822–4828

Removing the depth-degeneracy in optical frequency domain imaging with frequency shifting

S. H. Yun, G. J. Tearney, J. F. de Boer, and B. E. Bouma  »View Author Affiliations

Optics Express, Vol. 12, Issue 20, pp. 4822-4828 (2004)

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A novel technique using an acousto-optic frequency shifter in optical frequency domain imaging (OFDI) is presented. The frequency shift eliminates the ambiguity between positive and negative differential delays, effectively doubling the interferometric ranging depth while avoiding image cross-talk. A signal processing algorithm is demonstrated to accommodate nonlinearity in the tuning slope of the wavelength-swept OFDI laser source.

© 2004 Optical Society of America

OCIS Codes
(110.1650) Imaging systems : Coherence imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging

ToC Category:
Research Papers

Original Manuscript: August 18, 2004
Revised Manuscript: September 21, 2004
Published: October 4, 2004

S. Yun, G. Tearney, J. de Boer, and B. Bouma, "Removing the depth-degeneracy in optical frequency domain imaging with frequency shifting," Opt. Express 12, 4822-4828 (2004)

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