Long-optical-path scanning mechanism for optical coherence tomography

被引：0
|
作者：
Shiina, Tatsuo [1 ]
Moritani, Yohei [1 ]
Ito, Masafumi [1 ]
Okamura, Yasuyuki [1 ]
机构：
[1] Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama-shi, Wakayama 640-8510, Japan
来源：
Applied Optics | 2003年 / 42卷 / 19期
关键词：
Amplifiers (electronic) - Coherent light - Rotating disks - Scanning - Tomography;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new scanning mechanism for changing long optical paths is proposed. This mechanism consists of corner reflectors arranged equally upon a disk and an outer mirror. Rotating the 120-mmφdisk cases a long-optical-path change in each reflector with a near linearity of more than 40 mm. An optical coherence tomography system is described that confirms the usefulness of the proposed mechanism. Its operating characteristics and accuracy are evaluated by analysis and experiment. The deviation of the optical-path change is less than 1.52% at a reflector rotation angle of ±10°. A high-speed lock-in amplifier is utilized for fundamental measurements of glass samples. © 2003 Optical Society of America.
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页码：3795 / 3799
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