Active demodulation system for multiplexed FBG sensors

Bai'ou Guan; Xinyong Dong; Zhiguo Liu; Xiaoyi Dong; Hwa-Yaw Tam

doi:10.1117/12.417880

23 February 2001 Active demodulation system for multiplexed FBG sensors

Bai'ou Guan, Xinyong Dong, Zhiguo Liu, Xiaoyi Dong, Hwa-Yaw Tam

Proceedings Volume 4357, Distributed Fiber Optical Sensors and Measuring Networks; (2001) https://doi.org/10.1117/12.417880
Event: Distributed Fiber Optical Sensors and Measuring Networks, 2000, none, Russian Federation

Abstract

An active wavelength demodulation approach with high- resolution for fiber Bragg grating sensor is proposed and demonstrated for multiplexed temperature measurement in this paper. A tunable fiber laser controlled by computer is used as the scanning light source. And the computer synchronously performs data gathering and processing. Here Gaussian-Newton curve fitting approach is used to determine the Bragg wavelength of the grating sensors. A resolution approximately +/- 0.1 pm, corresponding to approximately +/- 0.01 degree(s)C has been demonstrated using this approach.

Citation Download Citation

Bai'ou Guan, Xinyong Dong, Zhiguo Liu, Xiaoyi Dong, and Hwa-Yaw Tam "Active demodulation system for multiplexed FBG sensors", Proc. SPIE 4357, Distributed Fiber Optical Sensors and Measuring Networks, (23 February 2001); https://doi.org/10.1117/12.417880

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