Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating

Jingyi Yang; Xinyong Dong; Shangzhong Jin; Chi Chiu Chan; Perry Ping Shum

doi:10.1117/12.2059450

2 June 2014 Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating

Jingyi Yang, Xinyong Dong, Shangzhong Jin, Chi Chiu Chan, Perry Ping Shum

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91571F (2014) https://doi.org/10.1117/12.2059450
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

A novel magnetic field sensor by using an optical fiber Bragg grating (FBG) cascaded by a cleaved optical fiber end, which is face surrounded with magnetic fluid (MF), is experimentally demonstrated. Through Fresnel reflection (FR) of the fiber end face, side mode suppression ratio (SMSR) of reflection spectrum of the FBG is tuned by refractive index (RI) of the MF, which is sensitivity to the external magnetic field. As a result, magnetic field measurement is successfully achieved. Compared with previously reported methods based on FR of a fiber end only, it eliminates the influence of power level fluctuation of the optical source and therefore improves the measurement accuracy and stability. Furthermore, temperature can be measured simultaneously by monitoring wavelength shift of the FBG.

Citation Download Citation

Jingyi Yang, Jingyi Yang, Xinyong Dong, Xinyong Dong, Shangzhong Jin, Shangzhong Jin, Chi Chiu Chan, Chi Chiu Chan, Perry Ping Shum, Perry Ping Shum, } "Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571F (2 June 2014); doi: 10.1117/12.2059450; https://doi.org/10.1117/12.2059450

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years