A refractive index sensor based on near-surface-core fiber

Xiaozhong Tian; Chunying Guan; Hailong Wu; Libo Yuan

doi:10.1117/12.970620

17 October 2012 A refractive index sensor based on near-surface-core fiber

Xiaozhong Tian, Chunying Guan, Hailong Wu, Libo Yuan

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84211R (2012) https://doi.org/10.1117/12.970620
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

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.

Citation Download Citation

Xiaozhong Tian, Chunying Guan, Hailong Wu, and Libo Yuan "A refractive index sensor based on near-surface-core fiber", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211R (17 October 2012); https://doi.org/10.1117/12.970620

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available