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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 18 — Sep. 8, 2003
  • pp: 2183–2189

Sensitivity advantage of swept source and Fourier domain optical coherence tomography

Michael A. Choma, Marinko V. Sarunic, Changhuei Yang, and Joseph A. Izatt  »View Author Affiliations


Optics Express, Vol. 11, Issue 18, pp. 2183-2189 (2003)
http://dx.doi.org/10.1364/OE.11.002183


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Abstract

We present theoretical and experimental results which demonstrate the superior sensitivity of swept source (SS) and Fourier domain (FD) optical coherence tomography (OCT) techniques over the conventional time domain (TD) approach. We show that SS- and FD-OCT have equivalent expressions for system signal-to-noise ratio which result in a typical sensitivity advantage of 20–30dB over TD-OCT. Experimental verification is provided using two novel spectral discrimination (SD) OCT systems: a differential fiber-based 800nm FD-OCT system which employs deep-well photodiode arrays, and a differential 1300nm SS-OCT system based on a swept laser with an 87nm tuning range.

© 2003 Optical Society of America

OCIS Codes
(030.4280) Coherence and statistical optics : Noise in imaging systems
(110.4500) Imaging systems : Optical coherence tomography

ToC Category:
Research Papers

History
Original Manuscript: July 21, 2003
Revised Manuscript: August 22, 2003
Published: September 8, 2003

Citation
Michael Choma, Marinko Sarunic, Changhuei Yang, and Joseph Izatt, "Sensitivity advantage of swept source and Fourier domain optical coherence tomography," Opt. Express 11, 2183-2189 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-18-2183


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References

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