Surface Plasmon Resonance Refractive Index Sensor Based on Active Photonic Crystal Fiber

Author

Hao, C.J. ; Lu, Yang ; Wang, M.T. ; Wu, B.Q. ; Duan, L.C. ; Yao, J.Q.

Author_Institution

Key Lab. of Opto-Electron. Inf. Technol. (Minist. of Educ.), Tianjin Univ., Tianjin, China

Volume

5

Issue

6

fYear

2013

fDate

Dec. 2013

Firstpage

4801108

Lastpage

4801108

Abstract

We propose a surface plasmon resonance (SPR) refractive index (RI) sensor based on an active Yb³⁺-doped photonic crystal fiber (PCF) in this paper. With the proposed sensor, using the pump light at 976 nm can produce laser at 1060 nm. In addition, the sensitivity can be influenced obviously by a bit change of the refraction index of analyte in the air holes to achieve the intra-cavity fiber sensing. It is found that not only the different air-filling ratios but also the different analyte RIs of or have different effects on the output power and confinement loss, and lead to different trends. The intra-cavity PCF sensing system has great practical value and significance for their advantages of compact structure and high sensitivity.

Keywords

fibre optic sensors; holey fibres; nanophotonics; nanosensors; photonic crystals; plasmonics; refractive index measurement; surface plasmon resonance; ytterbium; active photonic crystal fiber; air-filling ratio; intracavity PCF sensing system; intracavity fiber sensing; refractive index sensor; surface plasmon resonance; wavelength 1060 nm; wavelength 976 nm; $hbox{Yb}^{3+}$-doped PCF; PCF-laser-based sensing; sensor of refractive index; surface plasmon resonance (SPR);

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2292302

Filename

6677554