Temperature Sensor Based on Modal Interference in Hollow-Core Photonic Bandgap Fiber With Collapse Splicing

Author

Gong, Huaping ; Chan, Chi Chiu ; Zhang, Yifan ; Wong, Weichang ; Dong, Xinyong

Author_Institution

Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China

Volume

12

Issue

5

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

1421

Lastpage

1424

Abstract

A temperature sensor based on modal interference in a hollow-core photonic bandgap fiber (HC-PBGF) is presented. The modal interferometer is fabricated by splicing the two ends of a 12-mm HC-PBGF to the standard single-mode fibers. The airholes in the core and cladding of the HC-PBGF are completely collapsed during the fusion splicing, and the length of the collapsed area of about 300 μm is observed. The transmission spectra under different temperatures are measured. The sensitivity of 31.8 pm/°C is achieved in the range of 25 °C-60 °C. The influence of the length of HC-PBGF on the sensitivity is also investigated.

Keywords

fibre optic sensors; light interference; light interferometers; optical fibre cladding; optical fibre fabrication; photonic band gap; splicing; temperature measurement; temperature sensors; HC-PBGF; airholes; collapse splicing; collapsed area; fusion splicing; hollow-core photonic bandgap fiber; modal interference; modal interferometer; size 12 mm; standard single-mode fibers; temperature 25 degC to 60 degC; temperature measurement; temperature sensor; transmission spectra; Optical fiber amplifiers; Optical fiber sensors; Sagnac interferometers; Sensitivity; Splicing; Temperature measurement; Temperature sensors; Modal interference; optical fiber sensor; photonic bandgap fiber (PBGF); temperature sensor;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2011.2171481

Filename

6043850