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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 25361–25370

Extra long imaging range swept source optical coherence tomography using re-circulation loops

Adrian Bradu, Liviu Neagu, and Adrian Podoleanu  »View Author Affiliations


Optics Express, Vol. 18, Issue 24, pp. 25361-25370 (2010)
http://dx.doi.org/10.1364/OE.18.025361


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Abstract

One of the main drawbacks of the swept source optical coherence tomography (SS-OCT) is its limited axial range. A novel interferometer configuration is proposed, equipped in each arm with an adjustable path length ring. By compensating the losses in the rings using semiconductor optical amplifiers, multiple paths A-scans can be obtained which when combined axially, can lead to an extremely long overall axial range. The effect of the re-circulation loops is equivalent with extending the coherence length of the swept source. In this way, the axial imaging range in SS-OCT can be pushed well beyond the limit imposed by the coherence length of the laser, to exceed in principle many centimeters.

© 2010 OSA

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(250.5980) Optoelectronics : Semiconductor optical amplifiers

ToC Category:
Imaging Systems

History
Original Manuscript: September 24, 2010
Revised Manuscript: November 4, 2010
Manuscript Accepted: November 12, 2010
Published: November 19, 2010

Citation
Adrian Bradu, Liviu Neagu, and Adrian Podoleanu, "Extra long imaging range swept source optical coherence tomography using re-circulation loops," Opt. Express 18, 25361-25370 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-25361


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References

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