Gamma-radiation enhancement of sensing properties of FBGs in a few-mode polymer CYTOP fiber

被引：8

作者：

Chapalo, Ivan ^{[1
]}

Chah, Karima ^{[1
]}

Gusarov, Andrei ^{[2
]}

Ioannou, Andreas ^{[3
]}

Pospori, Andreas ^{[3
]}

Nan, Ying-Gang ^{[1
]}

Kalli, Kyriacos ^{[3
]}

Megret, Patrice ^{[1
]}

机构：

[1] Univ Mons, Fac Engn, Electromagnetism & Telecommun Dept, Blvd Dolez 31, B-7000 Mons, Belgium

[2] SCK CEN, Boeretang 200, B-2400 Mol, Belgium

[3] Cyprus Univ Technol, Dept Elect Engn Comp Engn & Informat, Photon & Opt Sensor Res Lab, 33 Saripolou St, CY-3036 Limassol, Cyprus

来源：

OPTICS LETTERS | 2023年 / 48卷 / 05期

基金：

欧盟地平线“2020”;

关键词：

OPTICAL-FIBER; TEMPERATURE; SENSORS;

D O I：

10.1364/OL.482936

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the effect of gamma-radiation on temperature (T) and relative humidity (RH) sensitivities of polymer perfluo-rinated fiber Bragg gratings (FBGs). To this aim, different gamma-radiation doses (80, 120, 160, and 520 kGy) were applied to a set of FBGs. We show that irradiated FBGs demon-strate an RH sensitivity rise with the received dose: from 13.3 pm/%RH for a pristine FBG up to 56.8 pm/%RH for a 520-kGy dose at 30celcius. In contrast, T sensitivity decreases with radiation dose with a subsequent change of sign from positive to negative. Therefore, by experimental interpola-tion, T sensitivity can be eliminated at around a 160-kGy dose. This opens the possibility of designing an RH sensor with enhanced sensitivity, which at the same time is insensi-tive to T. (c) 2023 Optica Publishing Group

引用

页码：1248 / 1251

页数：4

共 32 条

[21] In-Situ Relative Humidity Sensing for Ultra-High-Performance Concrete Using Polymer Fiber Bragg Gratings [J].