Basic characteristics of axial scanner of optical coherence tomography with cylindrical piezoelectric transducer

被引：0

作者：

Takahashi, Yoshiyuki

Iwaya, Mitsuharu

Watanabe, Yuuki

Sato, Manabu

机构：

[1] Yamagata Univ, Grad Sch Sci & Engn, Yonezawa, Yamagata 9928510, Japan

[2] Yamagata Res Inst Technol, Yamagata 9902473, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 10A期

关键词：

endoscope; optical coherence tomography (OCT); fiber stretching; PZT; DELAY-LINE;

D O I：

10.1143/JJAP.45.7975

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the basic characteristics (scan depth, linearity, and stability) of a piezoelectric axial scanner (PAS) composed of optical fibers wound around a cylindrical piezoelectric transducer. The scan depth due to the stretching of the fibers is decreased to 77.5% by the photoelastic effect. With the application of a high voltage, pseudo-triangular signal to two PASs, a scan depth of 2 mm and scan rate of 2,000 lines/s were achieved and used to acquire a cross-sectional image of an in vivo human finger with a measurement time of 0.5s.

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收藏

页码：7975 / 7977

页数：3

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