By Topic

Distributed Sensing System of Optical Low-Coherence Reflectometry Using an Array of Identical Fiber Bragg Gratings

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Weisheng Liu ; Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou, China. ; Zu-Guang Guan ; Guorong Liu ; Sailing He

The optical low-coherent interferometric technology for Fiber Bragg grating (FBG) sensing array is described. The sensing array is formed by a series of identical FBGs with low reflectivity (5.25%), where the first FBG acts as a reference (shielded from the measurand), and the other FBGs work as sensors. Each sensing-FBG and the reference-FBG can form a Fabry-Perot (F-P) interferometer with a specific cavity length. By scanning a home-made optical low-coherence reflectometry (OLCR), the signals corresponding to different sensing-FBGs (F-P interferometers) can be obtained and well distinguished. A measurement of temperature is demonstrated and it shows good performance of the scheme.

Published in:

Sensors, 2007 IEEE

Date of Conference:

28-31 Oct. 2007