Optical imaging of hard and soft dental tissues using discretely swept OFDR-OCT

被引：1
|
作者：
Kakuma, Hideo [1 ]
Ohbayashi, Kkohji [1 ]
Arakawa, Yasuhiko [1 ]
机构：
[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, 4-6-1 Komaba, Tokyo 1538904, Japan
来源：
LASERS IN DENTISTRY XIII | 2007年 / 6425卷
关键词：
OCT; OFDR-OCT; SSG-DBR laser; C-band; L-band;
D O I：
10.1117/12.699897
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
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 mu s/step compared with former 10 mu 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.
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页数：7
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