A study on Q-factor of CCBG sensors by coupled mode theory

Songping Wu; Tao Wei; Jie Huang; Hai Xiao; Jun Fan

doi:10.1117/12.915755

6 April 2012 A study on Q-factor of CCBG sensors by coupled mode theory

Songping Wu, Tao Wei, Jie Huang, Hai Xiao, Jun Fan

Author Affiliations +

Proceedings Volume 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012; 834549 (2012) https://doi.org/10.1117/12.915755
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

The innovative coaxial cable Bragg grating (CCBG) sensor not only achieves the attractive attributes of high resolution, remote operation and multiplexing capability, but also has the advantages of large strain capability and robustness to survive harsh conditions, suitable for structural health monitoring (SHM). The Q-factor of the resonances in CCBG is studied in this paper by coupled mode theory (CMT), to obtain a better understanding of the device physics. The relationships between geometrical parameters and the Q-factor are investigated quantitatively and closed-from expressions are obtained. Design guidelines are developed to improve the Q-factor and consequently improve the senor sensitivity and accuracy.

Citation Download Citation

Songping Wu, Tao Wei, Jie Huang, Hai Xiao, and Jun Fan "A study on Q-factor of CCBG sensors by coupled mode theory", Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 834549 (6 April 2012); https://doi.org/10.1117/12.915755

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