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Title: Open cavity Fabry-Pérot interferometric refractometer based on C-shaped fiber
Authors: Wu, C
Liu, Z
Zhang, AP 
Guan, BO
Tam, HY 
Keywords: Fabry-Pérot interferometer
Fiber-optic sensor
Refractive index sensing
Issue Date: 2014
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2014, v. 9157, 91572F How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: We demonstrated an in-line open cavity Fabry-Pérot interferometer (FPI) for liquid refractive index sensing with linear response and high sensitivity. The FPI was fabricated by splicing a short piece of C-shaped fiber (tens of micrometers) between two standard single-mode fibers. The refractive index response of the FPI was characterized by ethanol-water mixtures in the range of 1.33 to 1.36, and a high sensitivity of 1294 nm/RIU at the wavelength of 1550 nm was achieved. The sensor was used to measure the thermo-optic coefficient of pure water, and the results agree well with the literature.
Description: 23rd International Conference on Optical Fibre Sensors, Santander, 2-6 June 2014
ISBN: 9781628411751
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.2059594
Appears in Collections:Conference Paper

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