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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 4 — Apr. 1, 2014

A rapid, dispersion-based wavelength-stepped and wavelength-swept laser for optical coherence tomography

Serhat Tozburun, Meena Siddiqui, and Benjamin J. Vakoc  »View Author Affiliations

Optics Express, Vol. 22, Issue 3, pp. 3414-3424 (2014)

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Abstract: Optical-domain subsampling enables Fourier-domain OCT imaging at high-speeds and extended depth ranges while limiting the required acquisition bandwidth. To perform optical-domain subsampling, a wavelength-stepped rather than a wavelength-swept source is required. This preliminary study introduces a novel design for a rapid wavelength-stepped laser source that uses dispersive fibers in combination with a fast lithium-niobate modulator to achieve wavelength selection. A laser with 200 GHz wavelength-stepping and a sweep rate of 9 MHz over a 94 nm range at a center wavelength of 1550 nm is demonstrated. A reconfiguration of this source design to a continuous wavelength-swept light for conventional Fourier-domain OCT is also demonstrated.

© 2014 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(140.3600) Lasers and laser optics : Lasers, tunable

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 10, 2013
Revised Manuscript: January 15, 2014
Manuscript Accepted: January 23, 2014
Published: February 5, 2014

Virtual Issues
Vol. 9, Iss. 4 Virtual Journal for Biomedical Optics

Serhat Tozburun, Meena Siddiqui, and Benjamin J. Vakoc, "A rapid, dispersion-based wavelength-stepped and wavelength-swept laser for optical coherence tomography," Opt. Express 22, 3414-3424 (2014)

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