Vibration sensor based on highly birefringent Bragg gratings written in standard optical fiber by a femtosecond laser

被引：0

作者：

Chah, Karima ^{[1
]}

Bueno, Antonio ^{[1
]}

Kinet, Damien ^{[1
]}

Caucheteur, Christophe ^{[1
]}

Chluda, Cedric ^{[1
]}

Megret, Patrice ^{[1
]}

Wuilpart, Marc ^{[1
]}

机构：

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

来源：

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

关键词：

Fiber Bragg grating; femtosecond laser inscription; sensor; vibration; birefringence; POLARIZATION; FABRICATION; PULSES;

D O I：

10.1117/12.2059932

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a vibration sensor based on highly birefringent fiber Bragg gratings written in standard single mode optical fiber and realized with UV femtosecond pulses. This vibration sensor takes advantage of the stress-induced phase shift between the two orthogonally polarized fiber eigenmodes which induces intensity distribution changes in the two fiber Bragg grating reflection modes. The gratings are inscribed with the femtosecond line by line technique and have a birefringence value of 6 10(-4). We demonstrate that theses gratings are temperature birefringence insensitive and ideal for vibration measurements.

引用

页数：4

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