Share Email Print
cover

Proceedings Paper

Open cavity Fabry-Pérot interferometric refractometer based on C-shaped fiber
Author(s): Chuang Wu; Zhengyong Liu; A. Ping Zhang; Bai-Ou Guan; Hwa-Yaw Tam
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91572F (2 June 2014); doi: 10.1117/12.2059594
Show Author Affiliations
Chuang Wu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Jinan Univ. (China)
Zhengyong Liu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
A. Ping Zhang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Bai-Ou Guan, Jinan Univ. (China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

© SPIE. Terms of Use
Back to Top