Femtosecond laser microprinting of a polymer fiber Bragg grating for high-sensitivity temperature measurements

被引：41

作者：

Li, Chi ^{[1
]}

Liao, Changrui ^{[1
]}

Wang, Jia ^{[1
]}

Li, Zhengyong ^{[1
]}

Wang, Ying ^{[1
]}

He, Jun ^{[1
]}

Bai, Zhiyong ^{[1
]}

Wang, Yiping ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China

来源：

OPTICS LETTERS | 2018年 / 43卷 / 14期

基金：

中国国家自然科学基金;

关键词：

OPTICAL-FIBER; WAVE-GUIDES; HUMIDITY; LITHOGRAPHY; FABRICATION;

D O I：

10.1364/OL.43.003409

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the microprinting of a novel suspended polymer fiber Bragg grating for high-sensitivity temperature measurements. The proposed sensor was developed using a femtosecond laser-induced multiphoton polymerization technique. The grating was cured in a single-groove silica tube spliced between two single-mode fibers. Its transmission spectrum, mode field, and temperature response were thoroughly investigated. A sensitivity of -220 pm/degrees C was achieved over a temperature range of 24 degrees C to 40 degrees C, which is meaningful in biosensing applications. This all-in-fiber polymer Bragg grating exhibits high temperature sensitivity, excellent mechanical strength, and ultrahigh integration. As such, a temperature sensing element of this type would be a beneficial tool for biological measurements. (C) 2018 Optical Society of America

引用

页码：3409 / 3412

页数：4

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