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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 19 — Oct. 1, 2006
  • pp: 2882–2884

Linear optical coherence tomography system with extended measurement range

Peter Koch, Volker Hellemanns, and Gereon Hüttmann  »View Author Affiliations


Optics Letters, Vol. 31, Issue 19, pp. 2882-2884 (2006)
http://dx.doi.org/10.1364/OL.31.002882


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Abstract

Optical coherence tomography (OCT) sensors traditionally use scanning optical delay lines with moving parts and a single detector. OCT systems with a linear detector array (linear OCT or L-OCT) are simple and robust, but a detector with approximately 10,000 pixels is needed for an imaging depth of 2 mm , which is necessary for most biomedical applications. We present a new optical setup for L-OCT with an increased measurement range. An additional grating performs a reduction of the spatial frequencies of the fringe pattern on the detector without loss in the signal-to-noise ratio, so the signal can be sampled with a minimal number of pixels. The theory for this approach is addressed and the first measurements are presented.

© 2006 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(060.2310) Fiber optics and optical communications : Fiber optics
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.1650) Medical optics and biotechnology : Coherence imaging
(260.3160) Physical optics : Interference
(290.4210) Scattering : Multiple scattering

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: May 12, 2006
Manuscript Accepted: June 2, 2006
Published: September 11, 2006

Virtual Issues
Vol. 1, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Peter Koch, Volker Hellemanns, and Gereon Hüttmann, "Linear optical coherence tomography system with extended measurement range," Opt. Lett. 31, 2882-2884 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-19-2882

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