Reflection-Based Phase-Shifted Long-Period Fiber Grating for Cryogenic Temperature Measurements

被引：0

作者：

Martins, R. ^{[1
,2
]}

Monteiro, J. ^{[4
]}

Caldas, P. ^{[1
,2
]}

Santos, J. L. ^{[1
,3
]}

Rego, G. ^{[1
,2
]}

机构：

[1] INESC Porto, Rua Campo Alegre 687, P-4169007 Oporto, Portugal

[2] Inst Politecnico Viana Castelo, Escola Super Tecnol Gestao, Viana do Castelo, Portugal

[3] Univ Porto, Fac Ciencias, Dept Fis, Rua Campo Alegre 823, P-4100 Porto, Portugal

[4] FiberSensing, P-4470640 Maia, Portugal

来源：

23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2014年 / 9157卷

关键词：

Long-period fiber grating; optical fiber sensor; cryogenic temperatures;

D O I：

10.1117/12.2059529

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we propose a compact sensor head to perform cryogenic temperature measurements based on a long-period fiber grating. The presented configuration enables the sensor to be interrogated in reflection since a phase-shifted is produced by Fresnel reflection on the end-face of the fiber, cleaved at a quarter-period separation distance from the end of the grating.

引用

页数：4

共 10 条

[1] Applications of long-period gratings to single and multi-parameter sensing [J].