Group-Delay-Based Temperature Sensing in Linearly-Chirped Fiber Bragg Gratings Using a Kerr Phase-Interrogator

被引：19

作者：

Lu, Yang ^{[1
]}

Baker, Chams ^{[1
]}

Chen, Liang ^{[1
]}

Bao, Xiaoyi ^{[1
]}

机构：

[1] Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2015年 / 33卷 / 02期

关键词：

Bragg gratings; fiber nonlinear optics; Kerr effect; temperature measurement; SENSORS;

D O I：

10.1109/JLT.2014.2378072

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：

We present a novel temperature sensor based on temperature dependence of reflection group-delay in a linearly chirped fiber Bragg grating. The reflection group-delay of a chirped grating changes with temperature leading to a variation in the phase of a sinusoidal optical signal reflected from the grating. A Kerr phase-interrogator converts the phase variation into power variation allowing for high-precision temperature sensing. A temperature sensor with a resolution of 0.0089 degrees C and a sensitivity of 1.122 rad/degrees C is experimentally demonstrated.

引用

页码：381 / 385

页数：5

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