Characterisation of silicon fibre Bragg grating in near-infrared band for strain and temperature sensing

被引：10

作者：

Theodosiou, A. ^{[1
]}

Fokine, M. ^{[2
]}

Hawkins, T. ^{[3
,4
]}

Ballato, J. ^{[3
,4
]}

Gibson, U. J. ^{[5
]}

Kalli, K. ^{[1
]}

机构：

[1] Cyprus Univ Technol, Photon & Opt Sensors Res Lab, CY-3036 Limassol, Cyprus

[2] KTH Royal Inst Technol, Dept Appl Phys, S-10044 Stockholm, Sweden

[3] Clemson Univ, COMSET, Clemson, SC 29634 USA

[4] Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29634 USA

[5] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

来源：

ELECTRONICS LETTERS | 2018年 / 54卷 / 24期

关键词：

high-speed optical techniques; temperature sensors; Bragg gratings; fibre optic sensors; silicon compounds; optical fibre fabrication; silicon; optical fibre cladding; optical glass; strain measurement; strain sensors; elemental semiconductors; standard silica fibres; near-infrared band; temperature sensing; crystalline silicon-core fibre; visible light femtosecond laser pulses; transparent silica glass cladding; locally high temperatures; grating periods; Si FBGs; strain sensing; fibre Bragg grating inscription; wavelength; 517; 0; nm; Si; SiO2; THERMAL-EXPANSION COEFFICIENT;

D O I：

10.1049/el.2018.6529

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：

Fibre Bragg grating inscription in the crystalline silicon (Si)-core fibre is described using visible light femtosecond laser pulses. The femtosecond pulses at 517 nm propagate through the transparent silica glass cladding and are fully absorbed by the Si core generating locally high temperatures and stress fields in forming the grating periods. The Si FBGs were characterised in reflection, calibrated for a first time as strain and temperature sensors and compared with that of FBGs inscribed in standard silica fibres.

引用

页码：1393 / 1394

页数：2

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