Temperature and index insensitive strain sensor based on a photonic crystal fiber in line Mach-Zehnder interferometer

被引：56

作者：

Zheng, Jiarong ^{[1
,2
]}

Yan, Peiguang ^{[1
,2
]}

Yu, Yongqin ^{[2
,3
]}

Ou, Zhilong ^{[1
,2
]}

Wang, Jishun ^{[1
,2
]}

Chen, Xue ^{[1
,2
]}

Du, Chenlin ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Elect Sci & Technol, Shenzhen 518060, Peoples R China

[2] Shenzhen Key Lab Laser Engn, Shenzhen 518060, Peoples R China

[3] Shenzhen Univ, Coll Phys Sci & Technol, Shenzhen 518060, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2013年 / 297卷

关键词：

Photonic crystal fiber; Mach-Zehnder interferometer; Strain sensor; GRATINGS; PAIR;

D O I：

10.1016/j.optcom.2013.01.063

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Mach-Zehnder interferometer strain sensors made from pieces of photonic crystal fiber spliced to standard single mode fibers are fabricated with different lengths. High strain sensitivity of 2.1 pm/mu epsilon at 1550 nm is achieved with the length of 45 mm. The interference is induced by the core mode and the high order core mode due to the special air hole structure of PCF, which is independent of the surrounding refractive index. The temperature sensitivity (similar to 13.24 pm/degrees C) is relatively low. This structure is good in avoiding cross sensitivity in strain measurement and is fabricated with a simple process and low cost. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：7 / 11

页数：5

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