|
PolyU Institutional Repository >
Electrical Engineering >
EE Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/374
|
| Title: | FMCW multiplexing of fiber Bragg grating sensors |
| Authors: | Chan, Peter K. C.
Jin, Wei
Demokan, Suleyman |
| Subjects: | Fiber Bragg grating sensors
Frequency-modulated continuous wave
Optical fiber sensors
Strain measurements |
| Issue Date: | Sep-2000 |
| Publisher: | IEEE |
| Citation: | IEEE journal of selected topics in quantum electronics, Sept./Oct. 2000, v. 6, no. 5, p. 756-763 |
| Abstract: | We report on the use of frequency-modulated continuous wave (FMCW) techniques for multiplexing fiber Bragg grating (FBG) sensors. This technique is based on the modulation of light intensity from a broadband source by a linear swept-frequency
RF carrier. Signals from the FBG sensors located at different positions in an array are separated in frequency domain and demodulated using a tunable optical filter. The potential and limitation of the technique are discussed. A three-sensor FMCW
multiplexed FBG array of parallel topology and a six-sensor hybrid FMCW/WDM system were experimentally demonstrated with -30 dB crosstalk between sensors and 2 µε resolution in terms of root mean square (RMS) strain value. |
| Rights: | © 2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| Type: | Journal/Magazine Article |
| URI: | http://hdl.handle.net/10397/374 |
| ISSN: | 1077260X |
| Appears in Collections: | EE Journal/Magazine Articles
|
 Facebook
 del.icio.us
 LinkedIn
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.
|
|
