Title :
Multilongitudinal mode fiber laser sensor for temperature measurement
Author :
Long Huang ; Lei Qian ; Lin Chen ; Liang Gao ; Xiangfei Chen
Author_Institution :
Coll. of Eng. & Appl. Sci. & Nat. Lab. of Solid State Microstructures, Nanjing Univ., Nanjing, China
Abstract :
A multilongitudinal mode fiber laser sensor for temperature measurement is proposed and experimentally demonstrated. The beat frequency signal between any two modes varies linearly with the temperature. In the experiment, two different beat frequency signals with the sensitivities of -4.22 KHz/°C @ 1004.8 MHz and -16.78 KHz/°C @ 4041.2 MHz are studied between 30°C to 220°C. The sensor system presented is simple and low-cost.
Keywords :
fibre lasers; fibre optic sensors; laser modes; measurement by laser beam; temperature measurement; temperature sensors; beat frequency signal; frequency 1004.8 MHz; frequency 4041.2 MHz; low-cost sensor system; multilongitudinal mode fiber laser sensor; temperature 30 degC to 220 degC; temperature measurement;
Conference_Titel :
Communications and Photonics Conference (ACP), 2012 Asia
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4673-6274-0
