Optical imaging of hard and soft dental tissues using discretely swept optical frequency domain reflectometry optical coherence tomography at wavelengths from 1560 to 1600 nm

We have been developing a Mach-Zehnder type of optical frequency domain reflectometry optical coherence tomography (OFDR-OCT) that uses discretely swept superstructure-grating distributed Bragg- reflector (SSG-DBR) lasers developed for telecommunication fields and has a 12-mm-depth range. We report...

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Bibliographic Details
Published in:Journal of biomedical optics 2008-01, Vol.13 (1), p.014012-014012
Main Authors: Kakuma, Hideo, Ohbayashi, Kohji, Arakawa, Yasuhiko
Format: Article
Language:English
Subjects:
Equipment Design
Equipment Failure Analysis
Humans
Image Enhancement - instrumentation
Image Enhancement - methods
In Vitro Techniques
Interferometry - instrumentation
Interferometry - methods
Photometry - instrumentation
Photometry - methods
Reproducibility of Results
Sensitivity and Specificity
Spectroscopy, Fourier Transform Infrared - instrumentation
Spectroscopy, Fourier Transform Infrared - methods
Tomography, Optical Coherence - instrumentation
Tomography, Optical Coherence - methods
Tooth - cytology
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Summary:We have been developing a Mach-Zehnder type of optical frequency domain reflectometry optical coherence tomography (OFDR-OCT) that uses discretely swept superstructure-grating distributed Bragg- reflector (SSG-DBR) lasers developed for telecommunication fields and has a 12-mm-depth range. We report images obtained with L-band (1560 to 1600 nm) and C-band (1529 to 1568 nm) SSG-DBR sources at 0.5 micros/step, which is 20 times faster than the scanning speed used to obtain the images we reported previously. Despite the faster scanning, we obtain good OCT images of both hard and soft dental tissues in vitro and in vivo.
ISSN:1083-3668
DOI:10.1117/1.2839042