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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3740–3743

Coherence revival multiplexed, buffered swept source optical coherence tomography: 400  kHz imaging with a 100  kHz source

Derek Nankivil, Al-Hafeez Dhalla, Niklas Gahm, Kevin Shia, Sina Farsiu, and Joseph A. Izatt  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3740-3743 (2014)
http://dx.doi.org/10.1364/OL.39.003740


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Abstract

The effective speed of a swept source optical coherence tomography (SSOCT) imaging system was quadrupled using efficient sweep buffering along with coherence revival and spatial multiplexing. A polarizing beam splitter and fold mirror assembly were used to create a dual spot sample arm with a common objective designed for near-diffraction-limited retinal imaging. Using coherence revival, a variable optical delay line allowed for separate locations within a sample to be simultaneously imaged and frequency encoded by carefully controlling the optical path length of each sample path. This method can be used to efficiently quadruple the imaging speed of any SSOCT system employing a low duty-cycle laser that exhibits coherence revival. The system was used to image the retina of healthy human volunteers.

© 2014 Optical Society of America

OCIS Codes
(110.4190) Imaging systems : Multiple imaging
(110.4500) Imaging systems : Optical coherence tomography
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices

ToC Category:
Imaging Systems

History
Original Manuscript: February 28, 2014
Revised Manuscript: April 25, 2014
Manuscript Accepted: May 8, 2014
Published: June 18, 2014

Virtual Issues
Vol. 9, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Derek Nankivil, Al-Hafeez Dhalla, Niklas Gahm, Kevin Shia, Sina Farsiu, and Joseph A. Izatt, "Coherence revival multiplexed, buffered swept source optical coherence tomography: 400  kHz imaging with a 100  kHz source," Opt. Lett. 39, 3740-3743 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3740

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