Title :
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
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;
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
DOI :
10.1109/APOS.2008.5226287
