Share Email Print

Proceedings Paper

A refractive index sensor based on near-surface-core fiber
Author(s): Xiaozhong Tian; Chunying Guan; Hailong Wu; Libo Yuan
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

A Michelson interferometer based on near-surface-core fibers (NSCF) was demonstrated and applied to measure the refractive index (RI) of NaCl solution. The reference arm and the sensing arm of the interferometer are constituted by a single mode fiber and a chemical-etching near-surface-core fiber, respectively. Two different samples were tested. The wavelength shift of the interference spectrum with the variation of the environmental refractive index was investigated. The results show that the proposed sensor has a measurement resolution up to 120nm/RIU in the range of 1.333-1.3684. Furthermore, the resolution can be increased by adjusting the parameters of the NSCF reasonably.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211R (17 October 2012); doi: 10.1117/12.970620
Show Author Affiliations
Xiaozhong Tian, Harbin Engineering Univ. (China)
Chunying Guan, Harbin Engineering Univ. (China)
Hailong Wu, Harbin Engineering Univ. (China)
Libo Yuan, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

© SPIE. Terms of Use
Back to Top