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International Journal of Optics
Volume 2012, Article ID 565823, 6 pages
Research Article

Dual-Source Swept-Source Optical Coherence Tomography Reconstructed on Integrated Spectrum

Institute for Microstructural Sciences, National Research Council Canada, 1200 Montreal Rd, Ottawa, ON, Canada K1A 0R6

Received 26 July 2011; Accepted 9 August 2011

Academic Editor: Nanguang Chen

Copyright © 2012 Shoude Chang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Dual-source swept-source optical coherence tomography (DS-SSOCT) has two individual sources with different central wavelengths, linewidth, and bandwidths. Because of the difference between the two sources, the individually reconstructed tomograms from each source have different aspect ratio, which makes the comparison and integration difficult. We report a method to merge two sets of DS-SSOCT raw data in a common spectrum, on which both data have the same spectrum density and a correct separation. The reconstructed tomographic image can seamlessly integrate the two bands of OCT data together. The final image has higher axial resolution and richer spectroscopic information than any of the individually reconstructed tomography image.