Title :
A high sensitivity temperature sensor based on a selectively filled photonic crystal fiber sagnac interferometer
Author :
Tingting Han ; Yan-ge Liu ; Zhi Wang ; Zhifang Wu
Author_Institution :
Key Lab. of Opt. Inf. Sci. & Technol., Naikai Univ., Tianjin, China
Abstract :
A high sensitivity temperature sensor based on a Sagnac interferometer consisting of a segment of selectively liquid-filled photonic crystal fiber (SLF-PCF) is proposed and demonstrated. The SLF-PCF is achieved by the high frequency CO2 laser and possesses unique birefringence feature. Numerical and experimental results are presented, and a high sensitivity temperature sensor with sensitivity of ~-11.6 nm/°C is achieved from 65°C to 85°C.
Keywords :
Sagnac interferometers; birefringence; fibre optic sensors; holey fibres; optical fibre polarisation; photonic crystals; temperature sensors; Sagnac interferometer; birefringence; high-frequency carbon dioxide laser; high-sensitivity temperature sensor; optical fibre polarisation; selectively-liquid-filled photonic crystal fiber; temperature 65 degC to 85 degC; Filling; Liquids; Optical fiber sensors; Sagnac interferometers; Sensitivity; Silicon; Temperature sensors; CO2 laser; Sagnac interferometer; selectively filled; temperature sensor;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6458019
