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

fYear

2012

fDate

13-16 Dec. 2012

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2012

Conference_Location

Singapore

Print_ISBN

978-1-4673-2513-4

Type

conf

DOI

10.1109/PGC.2012.6458019

Filename

6458019