Miniaturized fiber-optic Fabry-Perot interferometer for highly sensitive refractive index measurement

Author

Deng, Ming ; Li, Hong ; Rao, Yun-Jiang ; Zhu, Tao

Author_Institution

Key Lab. of Optoelectron. Technol. & Syst., Chongqing Univ., Chongqing, China

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

4

Abstract

This paper presents a novel miniaturized fiber-optic Fabry-Peort interferometer (FPI) for highly sensitive refractive index measurement. This device was tested for the refractive indices of various liquids including acetone and ethanol at room temperature. The sensitivity for measurement of refractive index change of ethanol is 1138 nm/RIU at the wavelength of 1550 nm. In addition, the sensor fabrication is simple including only cleaving, splicing, and etching. The signal is stable with high visibility. Therefore, it provides a valuable tool in biological and chemical applications.

Keywords

Fabry-Perot interferometers; fibre optic sensors; photonic crystals; refractive index measurement; fibre optic sensors; highly sensitive refractive index measurement; miniaturized fiber-optic Fabry-Perot interferometer; photonic crystal fiber; Biosensors; Chemical and biological sensors; Ethanol; Fabry-Perot interferometers; Liquids; Optical fiber devices; Optical fiber testing; Refractive index; Temperature sensors; Wavelength measurement; Fabry-Perot; Fiber optic sensors; miniature sensor; photonic crystal fiber; refractive index measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference, 2008. APOS '08. 1st Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2131-2

Electronic_ISBN

978-1-4244-2132-9

Type

conf

DOI

10.1109/APOS.2008.5226287

Filename

5226287