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Proceedings Paper

Optical imaging of hard and soft dental tissues using discretely swept OFDR-OCT
Author(s): Hideo Kakuma; Kohji Ohbayashi; Yasuhiko Arakawa
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Paper Abstract

We have been developing a unique optical frequency domain reflectometry (OFDR)-OCT based on Mach-Zehnder interferometer using a discretly swept superstructure-grating distributed Bragg- reflector (SSG-DBR) lasers developed for telecommunication field. Our previous measurements at C-band wavelength (1529 to 1568 nm) revealed good quality of data. In this work, we extend measurements with a L-band (1560 to 1600 nm) SSG-DBR source at faster scanning speed of 0.5 &mgr;s/step compared with former 10 &mgr;s/step. In spite of the faster scanning, we can observe better quality of OCT images of hard and soft dental tissues in-vitro and in-vivo measurements.

Paper Details

Date Published: 8 March 2007
PDF: 7 pages
Proc. SPIE 6425, Lasers in Dentistry XIII, 642505 (8 March 2007); doi: 10.1117/12.699897
Show Author Affiliations
Hideo Kakuma, The Univ. of Tokyo (Japan)
Kohji Ohbayashi, Kitasato Univ. (Japan)
Yasuhiko Arakawa, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 6425:
Lasers in Dentistry XIII
Peter Rechmann; Daniel Fried, Editor(s)

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