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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 8 — Jul. 30, 2009

High-speed linear detection time domain optical coherence tomography with reflective grating-generated spatial reference delay

Yuuki Watanabe, Fumitoshi Sajima, Toshiki Itagaki, Kei Watanabe, and Yuuki Shuto  »View Author Affiliations


Applied Optics, Vol. 48, Issue 18, pp. 3401-3406 (2009)
http://dx.doi.org/10.1364/AO.48.003401


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Abstract

We developed a high-speed linear detection time-domain optical coherence tomography (OCT) technique that detected a reflective grating-generated spatial optical delay in the reference arm using a line scan camera during probe-beam scanning. Using an InGaAs line scan camera (512 pixels) operating at 47 , 000   lines / s , the calculation of the absolute value of the difference between two sequential lines can be approximately displayed as cross-sectional images with 500 lateral pixels at 94   frames / s . After data acquisition, we performed postprocessing that involves a Hilbert transform to improve the image quality of an OCT image. Our OCT system was successfully used to image a human finger in vivo with 93 dB sensitivity.

© 2009 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(110.4500) Imaging systems : Optical coherence tomography

ToC Category:
Imaging Systems

History
Original Manuscript: January 8, 2009
Revised Manuscript: April 18, 2009
Manuscript Accepted: May 24, 2009
Published: June 18, 2009

Virtual Issues
Vol. 4, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Yuuki Watanabe, Fumitoshi Sajima, Toshiki Itagaki, Kei Watanabe, and Yuuki Shuto, "High-speed linear detection time domain optical coherence tomography with reflective grating-generated spatial reference delay," Appl. Opt. 48, 3401-3406 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-48-18-3401

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Supplementary Material


» Media 1: MOV (3315 KB)     
» Media 2: MOV (3336 KB)     

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