A simultaneous spatial, time and wavelength division multiplexing topology, with combination of a tunable wavelength filter and an interferometric wavelength scanner, is proposed to interrogate a range of in-fiber Bragg grating (FBG) sensors. An eleven-element FBG sensor network based upon this topology is demonstrated for quasi-static strain sensing. Preliminary experimental results show that a strain resolution of approximately 7 (mu) (epsilon) with an approximately 30 Hz bandwidth (approximately 1.3 (mu) (epsilon) /(root)Hz) for quasi-static strain measurement has been obtained.
|Title of host publication||Distributed and Multiplexed Fibre Optic Sensors VI|
|Editors||Alan D. Kersey, John P. Dakin|
|Number of pages||8|
|Publication status||Published - 27 Nov 1996|
|Event||Distributed and Multiplexed Fiber Optic Sensors VI - Denver, United States|
Duration: 4 Aug 1996 → …
|Conference||Distributed and Multiplexed Fiber Optic Sensors VI|
|Period||4/08/96 → …|
Bibliographical noteYun-Jiang Rao ; Antonio B. Lobo Ribeiro ; David A. Jackson ; Lin Zhang and Ian Bennion "Simultaneously spatial-, time-, and wavelength-division multiplexed in-fiber Bragg grating sensor network", Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, 23 (November 27, 1996);
Copyright 1996 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- fibre optics
- optical fibre sensors
- strain sensors
- sensor multiplexing
- bragg gratings