Novel in-line fiber-optic etalon formed by hollow-core photonic crystal fiber

被引：0

作者：

Rao, Y. J. ^{[1
]}

Zhu, T. ^{[1
]}

Yang, X. C. ^{[1
]}

Duan, D. W. ^{[1
]}

机构：

[1] Chongqing Univ, Educ Minist China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China

来源：

19TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2 | 2008年 / 7004卷

关键词：

Fabry-Perot interferometer; photonic crystal fiber; optical fiber sensing; strain gauge;

D O I：

10.1117/12.785796

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A novel fiber-optic in-line etalon is proposed and demonstrated, formed by splicing a section of hollow-core photonic crystal fiber (HCPCF) in between two single-mode fibers, for the first time to our knowledge. Such a HCPCF-based etalon acts as an excellent optical waveguide to form a Fabry-Perot interferometer and hence allows the cavity length to be as long as several centimeters with good visibility as the transmission loss of the HCPCF is much smaller than that of a hollow core fiber, this offers great potential to generate a practical dense fiber-optic sensor network with spatial-frequency division-multiplexing. This novel etalon is demonstrated for strain measurement and the experimental results show that a good visibility of 0.3 and a strain accuracy of better than +/- 5 mu epsilon are achieved.

引用

页数：4

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