Bending and Strain Sensitivities in a Helicoidal Long-Period Fiber Gratings

被引：19

作者：

Jung, Hojoong ^{[1
]}

Shin, Woojin ^{[2
]}

Kim, Jun Ki ^{[3
]}

Park, Seung-Han ^{[1
]}

Ko, Do-Kyeong ^{[2
]}

Lee, Jongmin ^{[2
]}

Oh, Kyunghwan ^{[1
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

[2] GIST, Adv Photon Res Inst, Kwangju 500712, South Korea

[3] Fraunhofer Inst Appl Opt & Precis Engn, D-07745 Jena, Germany

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 17期

关键词：

Bending sensor; CO2; laser; fiber sensor; helicoidal long-period fiber gratings (HLPGs); strain sensor; SENSORS; CO2-LASER;

D O I：

10.1109/LPT.2009.2024646

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：

In this letter, we report bending and strain sensitivities of helicoidal long- period fiber gratings fabricated by twisting single- mode fibers during CO2 laser irradiation. Linear spectral shifts of the resonant wavelengths under the bending and tensile strain were observed with the sensitivities of 11.7 nm/m(-1) and 1.1 pm/mu epsilon, respectively. The corresponding transmission power variations at the resonance wavelength were 4.1 dB/m(-1) and 2.2 x 10(-4) dB/mu epsilon, respectively. Detailed measurement techniques and sensor applications are discussed.

引用

页码：1232 / 1234

页数：3

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