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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 24 — Nov. 27, 2006
  • pp: 11575–11584

Ultra-high-speed optical coherence tomography with a stretched pulse supercontinuum source

Sucbei Moon and Dug Young Kim  »View Author Affiliations


Optics Express, Vol. 14, Issue 24, pp. 11575-11584 (2006)
http://dx.doi.org/10.1364/OE.14.011575


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Abstract

We introduce a new high-speed Fourier-domain optical coherence tomography (FD-OCT) scheme based on a stretched pulse supercontinuum source. A wide-band short pulse of a supercontinuum source of which output spectrum spanned a wavelength range from 1,200 nm to 1,550 nm was stretched to a long pulse of 70-ns duration by using a dispersive fiber due to the group-velocity dispersion, and it was used directly as frequency-swept light for FD-OCT. The OCT spectral interferogram was acquired in the time domain and converted into the spectral domain by the pre-calibrated time-to-wavelength relation. Using this stretched-pulse OCT (SP-OCT) scheme, we have demonstrated an ultra-high-speed axial-line scanning rate of 5 MHz. The axial resolution of 8 µm was achieved without re-calibration of the sweep characteristic owing to the passive nature of the frequency-sweeping mechanism.

© 2006 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(230.6080) Optical devices : Sources

ToC Category:
Imaging Systems

History
Original Manuscript: September 13, 2006
Revised Manuscript: November 6, 2006
Manuscript Accepted: November 9, 2006
Published: November 27, 2006

Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Sucbei Moon and Dug Young Kim, "Ultra-high-speed optical coherence tomography with a stretched pulse supercontinuum source," Opt. Express 14, 11575-11584 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-24-11575


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