Development of Highly Radiation Resistant Fiber Bragg Gratings

被引：32

作者：

Henschel, Henning ^{[1
]}

Grobnic, Dan ^{[2
]}

Hoeffgen, Stefan K. ^{[1
]}

Kuhnhenn, Jochen ^{[1
]}

Mihailov, Stephen J. ^{[2
]}

Weinand, Udo ^{[1
]}

机构：

[1] Fraunhofer Inst Tech Trend Anal, D-53879 Euskirchen, Germany

[2] Commun Res Ctr, Ottawa, ON K2H 8S2, Canada

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2011年 / 58卷 / 04期

关键词：

Femtosecond laser; fiber Bragg grating; fiber optic sensor; gamma radiation; grating temperature dependence; radiation effects; recoating; strain sensor; temperature sensor; type I grating; wavelength shift; GAMMA-NEUTRON RADIATION; OPTICAL-FIBER; TEMPERATURE; WRITTEN; SENSITIVITY; EXPOSURE; BEHAVIOR; SENSORS;

D O I：

10.1109/TNS.2011.2160204

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fiber Bragg gratings with a radiation-induced wavelength shift of <5 pm up to gamma doses of 1 MGy were written with a femtosecond IR laser into Ge-free radiation hard optical fibers. At -50 degrees C the wavelength shift is only about a factor of two higher. After a dose of 1 MGy their tensile stress sensitivity decreased by about 4%. However, it is still necessary to improve their stability before they can be used for temperature and stress sensing in high radiation dose environments.

引用

页码：2103 / 2110

页数：8

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