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Proceedings Paper

Novel fiber devices and sensors based on multimode fiber Bragg gratings
Author(s): Keith H. Wanser; Karl F. Voss; Alan D. Kersey
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Paper Abstract

Two categories of multimode fiber Bragg gratings (MMFBG) are possible, independent mode and mode coupling, each leads to novel types of fiber devices and sensors. All-mode, wave optics calculations of the reflectivity of independent mode MMFBG are presented, including the effects of individual mode power changes due to microbending transducer loss upstream from the grating. MMFBG offer added flexibility in grating design and performance characteristics compared to single mode FBG, since the reflectivity response may be tuned by the spatial periodicity, length, core size, numerical aperture, and mode coupling characteristics of the grating. New sensing and diagnostic methods that are possible with these gratings and some methods for sensor addressing and multiplexing are described.

Paper Details

Date Published: 14 September 1994
PDF: 4 pages
Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); doi: 10.1117/12.185051
Show Author Affiliations
Keith H. Wanser, California State Univ./Fullerton (United States)
Karl F. Voss, California State Univ./Fullerton (United States)
Alan D. Kersey, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 2360:
Tenth International Conference on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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